(a.) Exactly upright or vertical; pointing to the zenith; at right angles to the plane of the horizon; extending in a right line from any point toward the center of the earth.
(a.) At right angles to a given line or surface; as, the line ad is perpendicular to the line bc.
(n.) A line at right angles to the plane of the horizon; a vertical line or direction.
(n.) A line or plane falling at right angles on another line or surface, or making equal angles with it on each side.
Example Sentences:
(1) Our data support the hypothesis that evoked and epileptiform magnetic fields result from intradendritic currents oriented perpendicular to the cortical surface.
(2) Right ventricular volumes were determined in 12 patients with different levels of right and left ventricular function by magnetic resonance imaging (MRI) using an ECG gated multisection technique in planes perpendicular to the diastolic position of the interventricular septum.
(3) We attribute the greater strength of the step-cut repair to the additional number of epitendinous loops, which lie perpendicular to the long axis of the tendon.
(4) The helix axes, penetrating the hydrophobic region of the bilayers, were oriented neither parallel nor perpendicular to the membrane normal.
(5) We show that over a limited range of high spatial frequencies this noise takes on a striated appearance, with the striations running perpendicular to the true fringe orientation.
(6) The AFB1 moiety is face-stacked in the major groove with its long axis approximately perpendicular to the helix axis.
(7) The two molecules in the asymmetric unit form a dimer with its 2-fold axis perpendicular to and intersecting with a crystallographic 4(1) axis.
(8) Interestingly, the helical motif prefers to assemble parallel to the wall, whereas the beta-barrel, predominantly assembles with its principal axis perpendicular to the wall.
(9) The numerals were either upright, or inverted, or rotated perpendicular to the arm axis.
(10) Parameters measured from simulator films included: (a) the perpendicular distance from the posterior tangential field edge to the posterior part of the anterior chest wall at the center of the field (CLD); (b) the maximum perpendicular distance from the posterior tangential field edge to the posterior part of the anterior chest wall (MLD); and (c) the length of lung (L) as measured at the posterior tangential field edge on the simulator film.
(11) Our results suggest that the first stage is much more selective for orientation than are lateral geniculate nucleus cells, but that the first-stage orientation bandwidth is rather wide with some interaction occurring between perpendicular orientations.
(12) In slices cut parallel to the pyramidal neurons (perpendicular to the brain surface) one can study chemosensitivity of the various parts of the dendritic tree and the soma.
(13) The bands encircle the muscle fiber perpendicular to the long axis of the fiber and they matched the sites of attachment of the sarcomeres to the plasma membrane.
(14) Thin section analysis of capped cells revealed an abundance of microtubules immediately beneath the cap which were arranged approximately perpendicular to the plane of the membrane.
(15) This procedure allowed both light and electron microscopic examination of serial-step sections of individual cells cut in a plane perpendicular to the monolayer.
(16) If a segment of a line differs in luminance or color from the rest of the line, three illusory phenomena may be perceived: a reduction in contrast of the line segment relative to the background, subjective contours running perpendicularly to the ends of the line segment, and spread of color or brightness surrounding the line segment.
(17) Typically they lie perpendicular to the cell membrane of the pinealocyte polar process and in close proximity to a polar process of a neighboring cell.
(18) The results of the scattering experiments were almost independent of whether the NaDNA fibers were oriented parallel or perpendicular to the momentum transfer.
(19) Instruments should be rotated perpendicular to the margin from gold to enamel.
(20) The method uses overlapping of Pi1, 3 and 4 in perfect centering of the lens in the axis of the eye (it is assessed by drawing a perpendicular line on the centre of the cornea) and marked dislocation of Pi3 in the direction of decentration of the planoconvex lens with the convexity facing the cornea.
Trench
Definition:
(v. t.) To cut; to form or shape by cutting; to make by incision, hewing, or the like.
(v. t.) To fortify by cutting a ditch, and raising a rampart or breastwork with the earth thrown out of the ditch; to intrench.
(v. t.) To cut furrows or ditches in; as, to trench land for the purpose of draining it.
(v. t.) To dig or cultivate very deeply, usually by digging parallel contiguous trenches in succession, filling each from the next; as, to trench a garden for certain crops.
(v. i.) To encroach; to intrench.
(v. i.) To have direction; to aim or tend.
(v. t.) A long, narrow cut in the earth; a ditch; as, a trench for draining land.
(v. t.) An alley; a narrow path or walk cut through woods, shrubbery, or the like.
(v. t.) An excavation made during a siege, for the purpose of covering the troops as they advance toward the besieged place. The term includes the parallels and the approaches.
Example Sentences:
(1) Its boot always held a bivouac bag, a trenching tool of some sort and a towel and trunks, in case he passed somewhere interesting to sleep, dig, or swim.
(2) The RSC’s Erica Whyman stages a story inspired by a local man, the Royal Warwickshire Regiment’s Captain Bruce Bairnsfather, who was known as the cartoonist of the trenches and survived the war to work at the original Shakespeare Memorial theatre.
(3) Stephen Fisher, one of the archaeologists recording the site, says digging the trenches would also have been training for the men, who would soon have to do it for real, and the little slit trenches scattered across the site, just big enough for one man to cower in, might represent their first efforts.
(4) Upon segregation of the conidium from the phialide cell by conidial wall formation, 'trench-like' invaginations gradually appeared in the plasma membrane and a disorganized rodlet pattern was formed on the outer surface of the maturing conidial wall.
(5) The field was taped off while a mechanical digger clawed at the ground, making parallel trenches in the sandy earth.
(6) Scores of archaeologists working in a waterlogged trench through the wettest summer and coldest winter in living memory have recovered more than 10,000 objects from Roman London , including writing tablets, amber, a well with ritual deposits of pewter, coins and cow skulls, thousands of pieces of pottery, a unique piece of padded and stitched leather – and the largest collection of lucky charms in the shape of phalluses ever found on a single site.
(7) He sees HS2 as a "huge trench across the country where we can learn an awful lot about new sites.
(8) But his attitude gradually hardened, particularly after he reached the trenches.
(9) "It looks solid," said Jean Pascal Zanders, a Belgian expert who runs a blog on chemical weapons called The Trench .
(10) What they learn can be summed up in one word: trenches.
(11) The archaeologists had to wear slippers to preserve the site which, at the bottom of a two-metre trench, picked up much damp.
(12) A variety of cold exposure injuries were discussed, including frostnip, chilblains, trench foot, frostbite, and hypothermia.
(13) Alan Trench, an academic specialising in devolution and adviser to expert government commissions, said: "It's clear that Labour voters generally have concerns about how things are at the moment.
(14) But if trapped deep inside wreckage or an underwater trench, the effectiveness can be hindered.
(15) French troops wearing an early form of gas mask in the trenches during the second Battle of Ypres in 1915.
(16) Keeping within the string lines of your footprint, dig a trench about 15cm deep and lay the foundation stones flat and level.
(17) But according to Wayne Cocroft, an English Heritage expert on wartime archaeology, although 20 other trench training sites have been recorded across Britain, many have been damaged by later development, and both the scale and the state of preservation of the Gosport complex is exceptional.
(18) Working in a location to the southeast of Kathmandu, Paul Tapponnier, an earth scientist at the Earth Observatory of Singapore , and his team dug trenches across the fault and used charcoal to date when it had moved.
(19) There are no trenches, barbed wire fences or tank traps.
(20) Accessory glandular tissues were atrophied and debris filled the trenches of the papillae.