What's the difference between mark and mask?

Mark


Definition:

  • (n.) A license of reprisals. See Marque.
  • (n.) An old weight and coin. See Marc.
  • (n.) The unit of monetary account of the German Empire, equal to 23.8 cents of United States money; the equivalent of one hundred pfennigs. Also, a silver coin of this value.
  • (n.) A visible sign or impression made or left upon anything; esp., a line, point, stamp, figure, or the like, drawn or impressed, so as to attract the attention and convey some information or intimation; a token; a trace.
  • (n.) A character or device put on an article of merchandise by the maker to show by whom it was made; a trade-mark.
  • (n.) A character (usually a cross) made as a substitute for a signature by one who can not write.
  • (n.) A fixed object serving for guidance, as of a ship, a traveler, a surveyor, etc.; as, a seamark, a landmark.
  • (n.) A trace, dot, line, imprint, or discoloration, although not regarded as a token or sign; a scratch, scar, stain, etc.; as, this pencil makes a fine mark.
  • (n.) An evidence of presence, agency, or influence; a significative token; a symptom; a trace; specifically, a permanent impression of one's activity or character.
  • (n.) That toward which a missile is directed; a thing aimed at; what one seeks to hit or reach.
  • (n.) Attention, regard, or respect.
  • (n.) Limit or standard of action or fact; as, to be within the mark; to come up to the mark.
  • (n.) Badge or sign of honor, rank, or official station.
  • (n.) Preeminence; high position; as, particians of mark; a fellow of no mark.
  • (n.) A characteristic or essential attribute; a differential.
  • (n.) A number or other character used in registring; as, examination marks; a mark for tardiness.
  • (n.) Image; likeness; hence, those formed in one's image; children; descendants.
  • (n.) One of the bits of leather or colored bunting which are placed upon a sounding line at intervals of from two to five fathoms. The unmarked fathoms are called "deeps."
  • (v. t.) To put a mark upon; to affix a significant mark to; to make recognizable by a mark; as, to mark a box or bale of merchandise; to mark clothing.
  • (v. t.) To be a mark upon; to designate; to indicate; -- used literally and figuratively; as, this monument marks the spot where Wolfe died; his courage and energy marked him for a leader.
  • (v. t.) To leave a trace, scratch, scar, or other mark, upon, or any evidence of action; as, a pencil marks paper; his hobnails marked the floor.
  • (v. t.) To keep account of; to enumerate and register; as, to mark the points in a game of billiards or cards.
  • (v. t.) To notice or observe; to give attention to; to take note of; to remark; to heed; to regard.
  • (v. i.) To take particular notice; to observe critically; to note; to remark.

Example Sentences:

  • (1) 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.
  • (2) Patient plasma samples demonstrated evidence of marked complement activation, with 3-fold elevations of C3a desArg concentrations by the 8th day of therapy.
  • (3) Following in vitro C activation in NHS by delta IgG, the 40 KD C4d component increased markedly.
  • (4) However, when cross-linked to anti-CD4 or anti-CD8 antibodies a markedly enhanced proliferation of the corresponding subpopulation is observed.
  • (5) When chimeric animals were subjected to a lethal challenge of endotoxin, their response was markedly altered by the transferred lymphoid cells.
  • (6) Increased dietary protein intake led to increased MDA per nephron, increased urinary excretion of MDA, and increased MDA per milligram protein in subtotally nephrectomized animals, and markedly increased the glutathione redox ratio.
  • (7) Cyclic AMP stimulated phosphorylation by [gamma-32P]ATP of two proteins of apparent Mr = 20,000 and 7,000 that were concentrated in sarcoplasmic reticulum, but the stimulation was markedly dependent on the presence of added soluble cyclic AMP-dependent protein kinase.
  • (8) Surprisingly, the clonal elimination of V beta 6+ cells is preceded by marked expansion of these cells.
  • (9) Muscle weakness and atrophy were most marked in the distal parts of the legs, especially in the gastrocnemius and soleus muscles, and then spread to the thighs and gluteal muscles.
  • (10) of PLA2 caused marked degranulation of mast cells in the rat mesentery which was facilitated by addition of calcium ion (10 mM) but antagonized by pretreating with three antiinflammatory agents.
  • (11) 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%.
  • (12) Marked enhancement of IFN-gamma production by T cells was seen in the presence of as little as 0.3% thymic DC.
  • (13) This effect was more marked in breast cancer patients which may explain our earlier finding that women with upper body fat localization are at increased risk for developing breast cancer.
  • (14) Completeness of isolation of the coronary and systemic circulations was shown by the marked difference in appearance times between the reflex hypotensive responses from catecholamine injections into the isolated coronary circulation and the direct hypertensive response from a similar injection when the circulations were connected as well as by the marked difference between the pressure pulses recorded simultaneously on both sides of the aortic balloon separating the two circulations.4.
  • (15) A marked overlap of input from the two eyes is an unusual feature for a diprotodont marsupial and has previously been seen only in the feathertail glider.
  • (16) The erythrocyte sedimentation rate is almost always markedly elevated.
  • (17) Marks out of 10: Enyeama 9 ; Odiah 4 , Shittu 6 , Yobo 6 , Taiwo 4 (Uche 74 6 ); Kaita 4 , Lukman 5 , Etuhu 3 , Obasi 5 (Odemwingie 60 6 ); Yakubu 5 , Obinna 3 (Martins 52 6 )
  • (18) Sixteen patients (27%) manifested anomalies of the urinary tract: 12 had markedly altered kidneys, 8 of which were unilateral and ipsilateral to the diaphragmatic defect.
  • (19) Her muscle weakness and hyperCKemia markedly improved by corticosteroid therapy, suggesting that the diagnosis was compatible with polymyositis (PM).
  • (20) The introduction of intravenous, high-dose thrombolytic therapy during a brief period has markedly reduced mortality of patients with acute myocardial infarction.

Mask


Definition:

  • (n.) A cover, or partial cover, for the face, used for disguise or protection; as, a dancer's mask; a fencer's mask; a ball player's mask.
  • (n.) That which disguises; a pretext or subterfuge.
  • (n.) A festive entertainment of dancing or other diversions, where all wear masks; a masquerade; hence, a revel; a frolic; a delusive show.
  • (n.) A dramatic performance, formerly in vogue, in which the actors wore masks and represented mythical or allegorical characters.
  • (n.) A grotesque head or face, used to adorn keystones and other prominent parts, to spout water in fountains, and the like; -- called also mascaron.
  • (n.) In a permanent fortification, a redoubt which protects the caponiere.
  • (n.) A screen for a battery.
  • (n.) The lower lip of the larva of a dragon fly, modified so as to form a prehensile organ.
  • (v. t.) To cover, as the face, by way of concealment or defense against injury; to conceal with a mask or visor.
  • (v. t.) To disguise; to cover; to hide.
  • (v. t.) To conceal; also, to intervene in the line of.
  • (v. t.) To cover or keep in check; as, to mask a body of troops or a fortess by a superior force, while some hostile evolution is being carried out.
  • (v. i.) To take part as a masker in a masquerade.
  • (v. i.) To wear a mask; to be disguised in any way.

Example Sentences:

  • (1) The blocking action may have masked and hindered detection of the stimulatory action of barium in other systems.
  • (2) Masking experiments are demonstrated for electrical frequency-modulated tone bursts from 1,000 to 10,000 cps and from 10,000 to 1,000 cps with superimposed clicks.
  • (3) Though immunocytochemistry did not show staining of synaptic regions this may be due to masking of the reactive epitope.
  • (4) Such factors can mask any interactions between biologic factors of the aging female reproductive system and other social factors that might otherwise detemine fertility during the later reproductive years.
  • (5) The interresponse-time reinforcement contingencies inherent in these schedules may actually mask the effects of overall reinforcement rate; thus differences in response rate as a function of reinforcement rate when interresponse-time reinforcement is eliminated may be underestimated.
  • (6) In gastric cancers the major finding was the occurrence of extensive masking of lectin binding sites by sialic acid which was not seen in normal mucosa.
  • (7) The expression of such secondary and tertiary syphilis is commonly masked and distorted by the long-term effects of subcurative doses of antibiotics; in fact, late latent and tertiary syphilis produce symptoms and immunosuppression similar to the profile of AIDS.
  • (8) After induction of anesthesia, the airway of those in group A was maintained with a conventional tracheal tube; in group B, with a laryngeal mask airway.
  • (9) To determine if the type of mechanical ventilation used (ie, face mask, nasal prongs, or endotracheal tube) was associated with GPNN, a matched case-control analysis was performed.
  • (10) Data were analyzed by investigators who were masked to treatment assignment or phase of study.
  • (11) The air entrainment devices from oxygen masks of four manufacturers (Henleys Medical Supplies Ltd, Vickers Medical, Intersurgical Ltd, C R Bard International Ltd) were studied.
  • (12) North Korea's blustering defiance at the annual US-South Korean exercises masks just a little fear that they could easily be turned into an all-out attack, and seems to work on the principle that the more you shout, the safer you will be.
  • (13) Since headache can often represent the warning symptom of a masked depression, in the present study sulpiride has been administered to patients suffering from nonorganic headache syndromes.
  • (14) • Police would be given discretion to remove face masks from people on the street "under any circumstances where there is reasonable suspicion that they are related to criminal activity".
  • (15) Analyses of this artificial curve allow estimation of that part of the internal interactions uninfluenced by the masking effect.
  • (16) Compared to previous masking studies of orientation selective units, non-oriented units have somewhat broader spatial frequency sensitivity curves, in agreement with primate neurophysiology.
  • (17) The contralateral masked condition was performed using 30-dB-SL 400-Hz narrow-band masking noise centered at frequency of test tone.
  • (18) But the research drills down into the data to examine different cohorts separately, and discovers that reassuring overall averages are masking some striking variations.
  • (19) Older subjects were found to be significantly more susceptible to the backward masking effect over longer delays between the target and masking stimuli.
  • (20) We have compared an alternative breathing system for preoxygenation comprising a Hudson face mask with high oxygen inflow (48 litre min-1) and a Mapleson A breathing system (100 ml kg-1 min-1).