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1. the auditory vesicle of the embryo.
2. the organ of hearing in certain animals.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.
1. Embryonic otic vesicle.
2. A balancing organ, analogous to the utricle of mammals, possessed by certain invertebrates and containing grains of calcareous material or of sand.
[oto- + G. kystis, a bladder]
Farlex Partner Medical Dictionary © Farlex 2012
1. The structure formed by invagination of the embryonic ectodermal tissue that develops into the inner ear.
2. A statocyst.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.
otocystThe precursor, in the MESODERM of the head of the embryo, of the membranous LABYRINTH of the inner ear.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005
otocystan invertebrate organ, containing fluid and OTOLITHS, that is believed to have an auditory function.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005