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singular of cilia.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.
cil·i·a(sil'ē-ŭm, -ă), Do not confuse this word with psyllium.
1. Synonym(s): eyelash
2. A motile extension of a cell surface, for example, of certain epithelial cells, containing nine longitudinal double microtubules arranged in a peripheral ring, together with a central pair.
[L. an eyelid]
Farlex Partner Medical Dictionary © Farlex 2012
n. pl. cil·ia (-ē-ə)
1. A microscopic hairlike process extending from the surface of a cell or unicellular organism. Capable of rhythmical motion, it acts in unison with other such structures to bring about the movement of the cell or of the surrounding medium.
2. An eyelash.
3. Botany One of the hairs along the margin or edge of a structure, such as a leaf, usually forming a fringe.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.
cil·i·um, pl. cilia (sil'ē-ŭm, -ă)
1. Synonym(s): eyelash.
2. A motile extension of a cell surface, e.g., of certain epithelial cells, containing nine longitudinal double microtubules arranged in a peripheral ring, together with a central pair.
[L. an eyelid]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
cilium(pl. cilia) a fine cytoplasmic structure in the form of a thread which projects from the surface of cells. Each cell may bear numerous cilia which beat constantly in one direction, either moving liquid over the surface of the cells concerned or moving the cell(s) in relation to the liquid, for example, locomotion in PROTOZOANS. They are also present in all Metazoa except the ARTHROPODS and NEMATODES, but in only a few plants, for example, cycads. The cilium has a similar structure to the FLAGELLUM, consisting of an outer membrane surrounding a matrix containing two central MICROTUBULES around which is a ring of nine more microtubules (a ‘9 + 2’ structure). At the base of the cilium is a basal body concerned with ATP production.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005
An eyelash (plural: cilia).
Millodot: Dictionary of Optometry and Visual Science, 7th edition. © 2009 Butterworth-Heinemann