from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A membranous sac contained within the labyrinth of the inner ear and connected with the semicircular canals.
- n. Botany A small bladderlike one-seeded indehiscent fruit, as in the amaranth.
- n. A small vestigial blind pouch of the prostate gland.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. One of two otolith organs located in the vertebrate inner ear (the other being the saccule).
- n. The prostatic utricle (a small indentation found in the male prostate).
- n. A dry fruit similar to an achene, found in the beet and dock plants.
from the GNU version of the Collaborative International Dictionary of English
- n. A little sac or vesicle, as the air cell of fucus, or seaweed.
- n. A microscopic cell in the structure of an egg, animal, or plant.
- n. A small, thin-walled, one-seeded fruit, as of goosefoot.
- n. A utriculus.
from The Century Dictionary and Cyclopedia
- n. A small sac, cyst, bag, or reservoir of the body; an ordinary histological cell.
- n. The common sinus of the inner ear; the larger of two sacs in the vestibule of the membranous labyrinth of the ear (the smaller one being the saccule), lodged in the fovea hemielliptica, of oval and laterally compressed shape, communicating with the openings of the membranous semicircular canals, and indirectly also with the saccule. Also called sacculus communis, sacculus hemiellipticus, sacculus semiovalis, utriculus vestibuli.
- n. In botany, a seed-vessel consisting of a very thin loose pericarp, inclosing a single seed; any thin bottle-like or bladder-like body, as the perigynium of Carex. See cuts under Sarcobatus and Perigynium. Also utriculus in all senses.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a small pouch into which the semicircular canals open
Two sacs, called the utricle and saccule, make up the inner ear's vestibule and three fluid-filled loops, known as the semi-circular canals, detect the rotation and tilting movements of the head.
The Dynamic equilibrium detects the linear or straight acceleration are detected by the organs called the utricle and saccule.
Mr Dixon, to turn the table, took on to ask of Mr Mulligan himself whether his incipient ventripotence, upon which he rallied him, betokened an ovoblastic gestation in the prostatic utricle or male womb or was due, as with the noted physician, Mr Austin
Lying above and forward are the utricle and the structures developed from it, and lying below and behind are the saccule and the structures developed from it.
The function of the utricle, we observe, is to maintain the normal posture.
The utricle and attendant structures are concerned with the vestibular sense, and I leave them to one side for now.
Attached to the utricle are three tubes that start and end there, each bending in a semicircle so they are called semicircular canals.
Otoconia persist in the utricle of the land vertebrates.
THE VESTIBULAR SENSE The acoustic nerve, which leads from the cochlea, has a branch leading to the other half of the contents of the internal ear, the utricle and its outgrowths, introduced on page 248.
The vestibular sense made possible by the utricle is somewhat reminiscent of the proprioceptive senses (see p. 221).