(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.
Interstice
Definition:
(n.) That which intervenes between one thing and another; especially, a space between things closely set, or between the parts which compose a body; a narrow chink; a crack; a crevice; a hole; an interval; as, the interstices of a wall.
(n.) An interval of time; specifically (R. C. Ch.), in the plural, the intervals which the canon law requires between the reception of the various degrees of orders.
Example Sentences:
(1) Both materials elicited a surrounding inflammatory reaction containing macrophages which transgressed the interstices of only the PGA prostheses.
(2) The acellular vesicles are formed from excess nuclear and plasma membranes produced during spermatid condensation, and the ECM is topologically restricted to the interstices between acellular vesicles and sperm heads, being absent from the flagellar surface.
(3) The effluent water and solutes appear in the form of lymph in the interstices between cells.
(4) The influence on healing of three materials for closure of interstices in a macroporous Dacron arterial prosthesis were evaluated by 56-day implantation in the canine descending thoracic aorta.
(5) The potential consequences of vascular damage are described as well as the importance of pancreatic lymphatics in the transport of the escaped enzymes from the interstices.
(6) It was also suggested that the interstices of the collagen fibers in the myocardial wall constituted the lymphatic ducts outside the blood vessels and that the MAO activity in serum determined by the method in which tryptamine hydrochloride was used as substrate might indicate the grade of fibrosis of the myocardial tissue in the infarcted areas.
(7) Mesh interstices epithelialized over the surface of the full-thickness wound (control sites) or over the surface of Dermagraft (experimental sites).
(8) The interstices G1, G3 and G4 seem to contain glycoproteins, whereas interstice G3 seems to contain some type of carbohydrate.
(9) Liquid in these interstices could amplify the degree of luminal compromise due to muscular contraction in at least two distinct ways.
(10) Finally, most frequently in 10- to 12-cell embryos, typical nucleolar structure is established as a result of intranucleolar differentiation giving rise to distinct fibrillar and granular components as well as to nucleolar interstices.
(11) Examination of the posterior or inner wall of this canal, represented by the sclerocorneal trabecula, in 15 species of primates and 5 adult humans, has enabled us to observe the existence of some small orifices or stomata that are the outermost part of the so-called Sondermann's canals, which in our opinion are made by the successive confluence of the interstices worked in the interior of the sclerocorneal trabecula by means of contraction of the longitudinal portion of the ciliary muscle.
(12) Small pockets of gas, known as gas nuclei, are trapped within surface interstices.
(13) The unproven hypothesis that ankle pain may result from compression of the marrow contents into the bone interstices is presented for consideration.
(14) In grade 1 injury the testicular parenchyma shows edema of interstice, slight blood extravasation and a desquamation of the germ cells.
(15) In the entorhinal area, the superficial cortical layers (I-III) contained most enzyme activity in the superficial two-thirds of layer I, the interstices between the stellate cell bodies in layer II, and the superficial part of layer III.
(16) "Fronds," characterized by contrast within the interstices of the lesion, were seen in three malignant lesions.
(17) The alveolar subepithelial basement membrane were markedly thickened and bundles of collagen fibres were formed in the interstice.
(18) Evidence of continuous basement membrane formation at the epithelial-Dermagraft junction, which was identified by immunohistochemical staining for laminin and type IV collagen, was seen by day 14 beneath the healed epithelium in the skin graft interstices.
(19) Deposition and activation of these enzymes in the interstices presumably is associated with the transformation of lamellar body-derived lipids from a relatively polar to a non-polar mixture, as well as the degradation of other non-lipid intercellular substrates.
(20) This morphological maturation involved the gradual transformation from relatively compact nucleoli to reticulate ones which exhibited a typical nucleolonemal configuration with numerous nucleolar interstices and fibrillar centers.