What's the difference between lead and pencil?

Lead


Definition:

  • (n.) An open way in an ice field.
  • (n.) A lode.
  • (n.) One of the elements, a heavy, pliable, inelastic metal, having a bright, bluish color, but easily tarnished. It is both malleable and ductile, though with little tenacity, and is used for tubes, sheets, bullets, etc. Its specific gravity is 11.37. It is easily fusible, forms alloys with other metals, and is an ingredient of solder and type metal. Atomic weight, 206.4. Symbol Pb (L. Plumbum). It is chiefly obtained from the mineral galena, lead sulphide.
  • (n.) An article made of lead or an alloy of lead
  • (n.) A plummet or mass of lead, used in sounding at sea.
  • (n.) A thin strip of type metal, used to separate lines of type in printing.
  • (n.) Sheets or plates of lead used as a covering for roofs; hence, pl., a roof covered with lead sheets or terne plates.
  • (n.) A small cylinder of black lead or plumbago, used in pencils.
  • (v. t.) To cover, fill, or affect with lead; as, continuous firing leads the grooves of a rifle.
  • (v. t.) To place leads between the lines of; as, to lead a page; leaded matter.
  • (v. t.) To guide or conduct with the hand, or by means of some physical contact connection; as, a father leads a child; a jockey leads a horse with a halter; a dog leads a blind man.
  • (v. t.) To guide or conduct in a certain course, or to a certain place or end, by making the way known; to show the way, esp. by going with or going in advance of. Hence, figuratively: To direct; to counsel; to instruct; as, to lead a traveler; to lead a pupil.
  • (v. t.) To conduct or direct with authority; to have direction or charge of; as, to lead an army, an exploring party, or a search; to lead a political party.
  • (v. t.) To go or to be in advance of; to precede; hence, to be foremost or chief among; as, the big sloop led the fleet of yachts; the Guards led the attack; Demosthenes leads the orators of all ages.
  • (v. t.) To draw or direct by influence, whether good or bad; to prevail on; to induce; to entice; to allure; as, to lead one to espouse a righteous cause.
  • (v. t.) To guide or conduct one's self in, through, or along (a certain course); hence, to proceed in the way of; to follow the path or course of; to pass; to spend. Also, to cause (one) to proceed or follow in (a certain course).
  • (v. t.) To begin a game, round, or trick, with; as, to lead trumps; the double five was led.
  • (v. i.) To guide or conduct, as by accompanying, going before, showing, influencing, directing with authority, etc.; to have precedence or preeminence; to be first or chief; -- used in most of the senses of lead, v. t.
  • (v. t.) To tend or reach in a certain direction, or to a certain place; as, the path leads to the mill; gambling leads to other vices.
  • (n.) The act of leading or conducting; guidance; direction; as, to take the lead; to be under the lead of another.
  • (n.) precedence; advance position; also, the measure of precedence; as, the white horse had the lead; a lead of a boat's length, or of half a second.
  • (n.) The act or right of playing first in a game or round; the card suit, or piece, so played; as, your partner has the lead.
  • (n.) The course of a rope from end to end.
  • (n.) The width of port opening which is uncovered by the valve, for the admission or release of steam, at the instant when the piston is at end of its stroke.
  • (n.) the distance of haul, as from a cutting to an embankment.
  • (n.) The action of a tooth, as a tooth of a wheel, in impelling another tooth or a pallet.

Example Sentences:

  • (1) Thirty-two patients (10 male, 22 female; age 37-82 years) undergoing maintenance haemodialysis or haemofiltration were studied by means of Holter device capable of simultaneously analysing rhythm and ST-changes in three leads.
  • (2) Herpesviruses such as EBV, HSV, and human herpes virus-6 (HHV-6) have a marked tropism for cells of the immune system and therefore infection by these viruses may result in alterations of immune functions, leading at times to a state of immunosuppression.
  • (3) LHRH therapy leads to higher plasma LH levels and a lower FSH in response to an intravenous LHRH test.
  • (4) These results demonstrate that increased availability of galactose, a high-affinity substrate for the enzyme, leads to increased aldose reductase messenger RNA, which suggests a role for aldose reductase in sugar metabolism in the lens.
  • (5) These are typically runaway processes in which global temperature rises lead to further releases of CO², which in turn brings about more global warming.
  • (6) Results indicated a .85 probability that Directive Guidance would be followed by Cooperation; a .67 probability that Permissiveness would lead to Noncooperation; and a .97 likelihood that Coerciveness would lead to either Noncooperation or Resistance.
  • (7) It would be fascinating to see if greater local government involvement in running the NHS in places such as Manchester leads over the longer term to a noticeable difference in the financial outlook.
  • (8) The Frenchman’s 65th-minute goal was a fifth for United and redemptive after he conceded the penalty from which CSKA Moscow took a first-half lead.
  • (9) Our results indicate that increasing the delay for more than 8 days following irradiation and TCD syngeneic BMT leads to a rapid loss of the ability to achieve alloengraftment by non-TCD allogeneic bone marrow.
  • (10) report the complications registered, in particular: lead's displacing 6.2%, run away 0.7%, marked hyperthermya 0.0%, haemorrage 0.4%, wound dehiscence 0.3%, asectic necrosis by decubitus 5%, septic necrosis 0.3%, perforation of the heart 0.2%, pulmonary embolism 0.1%.
  • (11) The availability and success of changes in reproductive technology should lead to a reappraisal of the indications for hysterectomy, especially in young women.
  • (12) Photoirradiation of F1 in the presence of the analog leads to inactivation depending linearly on the incorporation of label.
  • (13) In patients with coronary artery disease, electrocardiographic signs of left atrial enlargement (LAE-negative P wave deflection greater than or equal to 1 mm2 in lead V1) are associated with increased left ventricular end diastolic pressure (LVEDP).
  • (14) The new Somali government has enthusiastically embraced the new deal and created a taskforce, bringing together the government, lead donors (the US, UK, EU, Norway and Denmark), the World Bank and civil society.
  • (15) Suggested is a carefully prepared system of cycling videocassettes, to effect the dissemination of current medical information from leading medical centers to medical and paramedical people in the "bush".
  • (16) Mitonafide is the lead compound of a new series of antitumor drugs, the 3-Nitronaphthalimides, which have shown antineoplastic activity in vitro as well as in vivo.
  • (17) The presently available data allow us to draw the following conclusions: 1) G proteins play a mediatory role in the transmission of the signal(s) generated upon receptor occupancy that leads to the observed cytoskeletal changes.
  • (18) In the case presented, overdistension of a jejunostomy catheter balloon led to intestinal obstruction and pressure necrosis (of the small bowel), with subsequent abscess formation leading to death from septicemia.
  • (19) This is rapidly followed by a gamut of changes leading to demyelination.
  • (20) In crosses between inverted repeats, a single intrachromatid reciprocal exchange leads to inversion of the sequence between the crossover sites and recovery of both genes involved in the event.

Pencil


Definition:

  • (n.) A small, fine brush of hair or bristles used by painters for laying on colors.
  • (n.) A slender cylinder or strip of black lead, colored chalk, slate etc., or such a cylinder or strip inserted in a small wooden rod intended to be pointed, or in a case, which forms a handle, -- used for drawing or writing. See Graphite.
  • (n.) Hence, figuratively, an artist's ability or peculiar manner; also, in general, the act or occupation of the artist, descriptive writer, etc.
  • (n.) An aggregate or collection of rays of light, especially when diverging from, or converging to, a point.
  • (n.) A number of lines that intersect in one point, the point of intersection being called the pencil point.
  • (n.) A small medicated bougie.
  • (v. t.) To write or mark with a pencil; to paint or to draw.

Example Sentences:

  • (1) Analysts have trimmed their profit forecasts for this year with trading profits of £3.3bn pencilled in compared with £3.5bn in 2012-13.
  • (2) There is a developmental sequence of pencil grasp, and useful development scales in copying cube models, drawing geometric shapes, and the draw-a-man test.
  • (3) Comparing results of different stereotests, e.g., random-dot stereograms and the two-pencil test, provides some insight into different levels of cortical binocular interaction.
  • (4) We took all the feedback from users and put pencil to paper to create our consumer 3D printer built for speed and ease of use,” said Pettis.
  • (5) The influence of the parameters' inclination and curving of condylar guidance, intercondylar distance, Bennett angle, distance of the plate, and position of the recording pencil are studied.
  • (6) A numerical example reveals some lesser known properties of the circle of least confusion of astigmatic pencils.
  • (7) A 5-year-old boy had an excisional biopsy of a pigmented scleral lesion thought clinically to be a foreign body, probably graphite from a pencil.
  • (8) said: “The Bank of England seems all but certain to ease policy, with only the scale and form of easing in question.” Monks is predicting a bigger cut than many of his peers in the City, pencilling in a drop in official interest rates to zero.
  • (9) An illusion is something done one way that looks the other, like if you put a mirror in front of a pencil so the pencil looks like it's somewhere else.
  • (10) Twenty-nine women were obtained from two community-based facilities and administered the 10-item Edinburgh Postnatal Depression Scale (EDPS) in a computerised and 'pencil and paper' form.
  • (11) Differential pencil beam (DPB) is defined as the dose distribution relative to the position of the first collision, per unit collision density, for a monoenergetic pencil beam of photons in an infinite homogeneous medium of unit density.
  • (12) While that is higher than the 1.6% decline that statisticians had previously pencilled in, it will have no impact on an initial estimate for first quarter GDP growth of 0.3% – half the pace in the previous three months .
  • (13) Some can't afford their own uniforms or pencil tins and we have to teach them the most basic things, like how to queue up for dinner,” said Cater-Whitham.
  • (14) The drugmaker has also pencilled in mid- to high-single digit growth from emerging markets, building on growth in China, where it saw revenues leap by 22% in the first quarter of this year.
  • (15) In recent years there has been growing conceptual interest in narcissism, coupled with the rapid development of several paper and pencil measures.
  • (16) A case of mediastinitis occurred following perforation of the pharynx by a pencil.
  • (17) His pencil or pastel notes, readjusts, notes again with more emphasis the advancing or receding edge of a continually moving body.
  • (18) The first scratch of an HB pencil across the fresh page of a new notebook.
  • (19) Sources say the Sun has pencilled in September for the erection of its paywall.
  • (20) Psychological instruments are usually developed to subjectively measure specific variables; however, there may not be a fit if the researcher used a paper-and-pencil instrument developed to measure anxiety in psychiatric patients to measure anxiety in the sedated, postanesthesia patient.