(v. t.) The act of hindering, or the state of being hindered.
(v. t.) That which hinders; an impediment.
Example Sentences:
(1) The increased hindrance to diffusion of the probing molecules caused by the added solutes is considered as good evidence that the probing molecules diffuse by way of pores filled with water.6.
(2) We develop an analogy between the steric hindrance among receptors detecting randomly placed haptens and the temporary locking of a Geiger counter that has detected a radioactive decay.
(3) The relative reactivities of three o-substituted phenols can be explained in terms of steric hindrance which is minimal for a single o-substituent.
(4) The lower affinity of C8-substituted 7-methyl-1,3-dipropylxanthines can be explained quantitatively with steric hindrance, which C8-substituents experience from the 7-methyl group in these conformations.
(5) A comparison of the antioxidant activities of eight 1,4-naphthoquinones indicated that methyl substitution of C-2, lack of steric hindrance at C-3 or C-5, and (in the case of weak acids) a relatively high pKa are favorable structural features associated with strong antioxidant activity.
(6) However, no steric hindrance can be seen between subunits when the subunits in carbonmonoxy Hb are substituted with the corresponding subunits in deoxy Hb.
(7) This suggests that the one-carbon binding site can accomodate two one-carbon groups simultaneously without serious steric hindrance.
(8) Inter-molecular spread of the conformational change among the molecules of PVX protein was demonstrated in DAS-ELISA, when capture mAb inhibited binding of detecting mAb in the absence of steric hindrance.
(9) 46% of the fatal accidents were caused by crashing against hindrances.
(10) Partial hindrance was observed for the third antibody mAb delta 22.
(11) Intraocular horseradish peroxidase (HRP) accumulated in severed optic axons but was transported with no obvious hindrance in spared axons alongside the lesion.
(12) The molecular areas at which the phase transition occurs under the various experimental conditions, together with a parallel analysis of the hydration states and related molecular areas of the DPPC molecules in multilayers, strongly suggest that the steric hindrance associated with the hydration water of the polar head of DPPC molecules in the monolayer is responsible for the drastic decrease in diffusion coefficient in the liquid-condensed phase.
(13) The spondylodiscites were no hindrance for dorsal lordosing osteotomies and can be treated successfully by means of this static correction and the immobilisation.
(14) At the experiments with the isolated rat hearts, prepared by Langendorff, the anti-arrhythmic dose-effects of the water-soluble antioxidant fenozan from the class of steric-hindrance phenols were studied at condition of regional ischemia and reperfusion, as well as its action on the coronary flow.
(15) Taken together, these results suggest that tonin bound to alpha 1-macroglobulin keeps the active site intact and that inhibition of the enzyme activity is due to a steric hindrance.
(16) Because these inhibitors bind preferentially at the extracellular surface of the transporter, their effects must result from a conformational change rather than from steric hindrance.
(17) We propose that incA, in addition to sequestration, can also restrain replication by causing steric hindrance to the origin function.
(18) Vascular hindrance in muscle, but not hindlimb, was less during nerve stimulation in anemia than at normal Hct.
(19) Intense steric hindrance by introducing an enormously bulky group or complete elimination of the 17 beta-hydroxy group rather decreased the anti-androgenic activity.
(20) Their expertise led to this mess, and would be a hindrance, not a help, in cleaning it up.
Over
Definition:
(prep.) Above, or higher than, in place or position, with the idea of covering; -- opposed to under; as, clouds are over our heads; the smoke rises over the city.
(prep.) Across; from side to side of; -- implying a passing or moving, either above the substance or thing, or on the surface of it; as, a dog leaps over a stream or a table.
(prep.) Upon the surface of, or the whole surface of; hither and thither upon; throughout the whole extent of; as, to wander over the earth; to walk over a field, or over a city.
(prep.) Above; -- implying superiority in excellence, dignity, condition, or value; as, the advantages which the Christian world has over the heathen.
(prep.) Above in authority or station; -- implying government, direction, care, attention, guard, responsibility, etc.; -- opposed to under.
(prep.) Across or during the time of; from beginning to end of; as, to keep anything over night; to keep corn over winter.
(prep.) Above the perpendicular height or length of, with an idea of measurement; as, the water, or the depth of water, was over his head, over his shoes.
(prep.) Beyond; in excess of; in addition to; more than; as, it cost over five dollars.
(prep.) Above, implying superiority after a contest; in spite of; notwithstanding; as, he triumphed over difficulties; the bill was passed over the veto.
(adv.) From one side to another; from side to side; across; crosswise; as, a board, or a tree, a foot over, i. e., a foot in diameter.
(adv.) From one person or place to another regarded as on the opposite side of a space or barrier; -- used with verbs of motion; as, to sail over to England; to hand over the money; to go over to the enemy.
(adv.) Also, with verbs of being: At, or on, the opposite side; as, the boat is over.
(adv.) From beginning to end; throughout the course, extent, or expanse of anything; as, to look over accounts, or a stock of goods; a dress covered over with jewels.
(adv.) From inside to outside, above or across the brim.
(adv.) Beyond a limit; hence, in excessive degree or quantity; superfluously; with repetition; as, to do the whole work over.
(adv.) In a manner to bring the under side to or towards the top; as, to turn (one's self) over; to roll a stone over; to turn over the leaves; to tip over a cart.
(adv.) At an end; beyond the limit of continuance; completed; finished.
(a.) Upper; covering; higher; superior; also, excessive; too much or too great; -- chiefly used in composition; as, overshoes, overcoat, over-garment, overlord, overwork, overhaste.
(n.) A certain number of balls (usually four) delivered successively from behind one wicket, after which the ball is bowled from behind the other wicket as many times, the fielders changing places.