(n.) An opening; an open space; a gap, cleft, or chasm; a passage perforated; a hole; as, an aperture in a wall.
(n.) The diameter of the exposed part of the object glass of a telescope or other optical instrument; as, a telescope of four-inch aperture.
Example Sentences:
(1) Both apertures were repaired with great caution using individual sutures without resection of the hernial sac.
(2) By moving an electronic pen over a digitizing tablet, the subject could explore a line drawing stored in memory; on the display screen a portion of the drawing appeared to move behind a stationary aperture, in concert with the movement of the pen.
(3) The procedure consists of a Kirschner wire used as the means of traction on the remaining soft tissue of the lower lip, using the upper teeth or pyriform aperture bone as remote fixed points for tissue traction.
(4) The calibrated aperture in the bottom of each well is small enough to retain fluid contents by surface tension during monolayer growth, but also permits fluid to enter the wells when transfer plates are lowered into receptacles containing washing buffer or test sera.
(5) Acute toxicity consisted primarily of pain within the AA aperture (74%), pain outside the aperture (33%), and bladder spasm (26%) or systemic stress (25%).
(6) Latex particles, including BCR Certified Reference Material CRM 166a, have important applications for checking linearity and for calibrating aperture-impedance instruments used to determine red-cell volumes.
(7) The distance between the apertures on the screen as well as the subject's distance from the screen served as experimental parameters.
(8) When the highly crystalline core contents are suitably oriented to transmit their Bragg reflections through the objective aperture, regular fringes separated by 2-9.5 A have been visualized.
(9) Aperture size was modulated during flight on some trials in an attempt to test between these possibilities, but the results were inconclusive.
(10) When examined with the 3 mm aperture, the average resolving power of the IOLs was 81% of the diffraction limit; when examined with the 4 mm aperture, the average resolving power was 67% of the diffraction limit.
(11) Its principle consists in repairing the tissue defect resulting from the excision of the lower lip by the additional surgical removal of one or two soft tissue triangles from the region of the nasolabial fold and in achieving primarily, by means of horizontal relieving incisions at the base of the lip defect, an extension of the mouth aperture.
(12) Temporal fluctuations of stomatal aperture are important to water use efficiency.
(13) Specific microscope components and objectives are used, and the numerical apertures are adjusted such that light diffraction colors are produced to allow differentiation of the various biological entities and their habitat materials.
(14) Topographical corneal thickness changes were monitored in 10 subjects who each wore a hydrogel contact lens with a large central aperture ("donut" lens) for 6 hours.
(15) The theory is based on a three-dimensional model and the electromagnetic field is assumed to be generated by a prescribed electric field along a ring-shaped aperture.
(16) Quantitative analysis of an area 27 microns in diameter, or a total analysed volume of 1.1 microns3, was performed by using a mechanical aperture in the ion optical system.
(17) We evaluated both low- and high-power lenses and varied the input aperture size between 1, 3, and 5 mm.
(18) Subjects were asked to match the speeds of two moving random-dot patterns seen through circular apertures.
(19) However, our experience has shown us that in certain cases, there are some possibilities of aperture if we feel ourself free enough with our medical identity and if we keep silent as long as the patient is not able to hear us.
(20) The estimated doses to the third, fourth, fifth, and sixth cranial nerves was calculated at a saggital plane 13 to 15 mm from the pituitary by using computer-drawn dosimetry charts for the respective aperture size.
Pit
Definition:
(n.) A large cavity or hole in the ground, either natural or artificial; a cavity in the surface of a body; an indentation
(n.) The shaft of a coal mine; a coal pit.
(n.) A large hole in the ground from which material is dug or quarried; as, a stone pit; a gravel pit; or in which material is made by burning; as, a lime pit; a charcoal pit.
(n.) A vat sunk in the ground; as, a tan pit.
(n.) Any abyss; especially, the grave, or hades.
(n.) A covered deep hole for entrapping wild beasts; a pitfall; hence, a trap; a snare. Also used figuratively.
(n.) A depression or hollow in the surface of the human body
(n.) The hollow place under the shoulder or arm; the axilla, or armpit.
(n.) See Pit of the stomach (below).
(n.) The indentation or mark left by a pustule, as in smallpox.
(n.) Formerly, that part of a theater, on the floor of the house, below the level of the stage and behind the orchestra; now, in England, commonly the part behind the stalls; in the United States, the parquet; also, the occupants of such a part of a theater.
(n.) An inclosed area into which gamecocks, dogs, and other animals are brought to fight, or where dogs are trained to kill rats.
(n.) The endocarp of a drupe, and its contained seed or seeds; a stone; as, a peach pit; a cherry pit, etc.
(n.) A depression or thin spot in the wall of a duct.
(v. t.) To place or put into a pit or hole.
(v. t.) To mark with little hollows, as by various pustules; as, a face pitted by smallpox.
(v. t.) To introduce as an antagonist; to set forward for or in a contest; as, to pit one dog against another.
Example Sentences:
(1) When compared with nonspecialized regions of the cell membranes, these contact sites were characterized by a decreased intercellular distance, subplasmalemmal densities and coated pits.
(2) Interaction of viable macrophages with cationic particles at 37 degrees C resulted in their "internalization" within vesicles and coated pits and a closer apposition between many segments of plasmalemma than with neutral or anionic substances.
(3) Both types of oral cleft, cleft palate (CP) and cleft lip with or without CP (CLP), segregate in these families together with lower lip pits or fistulae in an autosomal dominant mode with high penetrance estimated to be K = .89 and .99 by different methods.
(4) The potential use of ancrod, a purified isolate from the venom of the Malaysian pit viper, Agkistrodon rhodostoma, in decreasing the frequency of cyclic flow variations in severely stenosed canine coronary arteries and causing thrombolysis of an acute coronary thrombus induced by a copper coil was evaluated.
(5) On land, the pits' stagnant pools of water become breeding grounds for dengue fever and malaria.
(6) Demonstration of low levels of Pit-1 expression in Ames dwarf (df) mice implies that both Pit-1 and df expression may be required for pituitary differentiation.
(7) At 4 degrees C or after fixation, anti-renal tubular brush border vesicle (BBV) IgG bound diffusely to the surface of GEC and to coated pits.
(8) A cell with a large Golgi apparatus and associated cytoplasmic granules resembles the pit cell described in the liver of a few other vertebrates.
(9) Pitting corrosion was seen on low-resistant Ni-Cr alloys, which had less Cr content.
(10) This brings lads like 12-year-old Matthew Mason down from the magnificent studio his father Mark, from a coal-mining town ravaged by pit closures, lovingly built him in the back garden at Gants Hill, north-east London.
(11) Stonehenge stood at the heart of a sprawling landscape of chapels, burial mounds, massive pits and ritual shrines, according to an unprecedented survey of the ancient grounds.
(12) Freeze fracture analysis confirmed the integrity of the tight junctions as well as increased numbers of vesicles or pits along the lateral cell membrane, indicating increased endocytotic activity.
(13) Likewise, the cost of emptying these pits can be high.
(14) Bifid uvula, preauricular pits, and abnormal palmar creases were also slightly more common in the patients, but the differences were not statistically significant.
(15) Hypertrophic fibrous astrocytes were common in chronic active lesions, were capable of myelin degradation and on occasion, contained myelin debris attached to clathrin-coated pits.
(16) A mother and daughter both presented at age 5 years with the triad of right-sided congenital cholesteatoma, right preauricular pits, and bilateral sensorineural hearing loss.
(17) In addition, the perfusion method in this experiment suggested the possibility of distinguishing pinocytotic vesicles from pits of cell membranes.
(18) Performance pay pitting teachers against each other just does not work - we are not in favour of that,” Merlino said.
(19) Both larval stages had an inner circle of 6 labial papillae, an outer circle of 6 labial papillae and 4 somatic papillae, and lateral amphidial pits.
(20) The country’s other attractions include a burning pit at “the door to hell” in the Darvaza crater, and rarely seen stretches of the silk road, the region’s ancient trade route.