[ sil-ee-uh m ]
/ ˈsɪl i əm /
singular of cilia.
Origin of cilium
Definition for cilium (2 of 2)
[ sil-ee-uh ]
/ ˈsɪl i ə /
plural noun, singular cil·i·um [sil-ee-uh m] /ˈsɪl i əm/.
Biology. minute hairlike organelles, identical in structure to flagella, that line the surfaces of certain cells and beat in rhythmic waves, providing locomotion to ciliate protozoans and moving liquids along internal epithelial tissue in animals.
Anatomy. the eyelashes.
Origin of cilia
1705–15; New Latin, plural of cilium eyelash, Latin: upper eyelid, perhaps a back formation from supercilium eyebrow; see supercilium
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for cilium
Each consists of a very slender curved filament, with a still finer filament, or cilium, arising from it on each side.An Elementary Text-book of the Microscope|John William Griffith
British Dictionary definitions for cilium (1 of 2)
/ (ˈsɪlɪəm) /
noun plural cilia (ˈsɪlɪə)
any of the short thread-like projections on the surface of a cell, organism, etc, whose rhythmic beating causes movement of the organism or of the surrounding fluid
the technical name for eyelash
Word Origin for cilium
C18: New Latin, from Latin: (lower) eyelid, eyelash
British Dictionary definitions for cilium (2 of 2)
/ (ˈsɪlɪə) /
the plural of cilium
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Medicine definitions for cilium
[ sĭl′ē-əm ]
n. pl. cil•i•a (-ē-ə)
A microscopic hairlike process extending from the surface of a cell or unicellular organism, capable of rhythmical motion, and acting with other such structures to cause the movement of the cell or of the surrounding medium.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Science definitions for cilium
[ sĭl′ē-əm ]
A tiny hairlike projection on the surface of some cells and microscopic organisms, especially protozoans. Cilia are capable of whipping motions and are used by some microorganisms, such as paramecia, for movement. Cilia lining the human respiratory tract act to remove foreign matter from air before it reaches the lungs.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.