chemotaxis

[ kee-moh-tak-sis, kem-oh- ]
/ ˌki moʊˈtæk sɪs, ˌkɛm oʊ- /
|

noun Biology.

oriented movement toward or away from a chemical stimulus.

Origin of chemotaxis

First recorded in 1890–95; chemo- + -taxis
Related formsche·mo·tac·tic [kee-moh-tak-tik, kem-oh-] /ˌki moʊˈtæk tɪk, ˌkɛm oʊ-/, adjectiveche·mo·tac·ti·cal·ly, adverb
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for chemotaxis

  • In general, the response of the leukocytes to chemotaxis is a conservative process.

    A Manual of Clinical Diagnosis|James Campbell Todd
  • Non-phagocytic leukocytosis is probably due more to stimulation of blood-making organs than to chemotaxis.

    A Manual of Clinical Diagnosis|James Campbell Todd
  • Chemotaxis alone will not explain the continuance of leukocytosis for more than a short time.

    A Manual of Clinical Diagnosis|James Campbell Todd
  • Chemotaxis means simply the effect of the presence of certain substances on vital organisms without specific chemical action.

    Parallel Paths|Thomas William Rolleston

British Dictionary definitions for chemotaxis

chemotaxis

/ (ˌkɛməʊˈtæksɪs) /

noun

the movement of a microorganism or cell in response to a chemical stimulus
Derived Formschemotactic, adjectivechemotactically, adverb
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

Word Origin and History for chemotaxis

chemotaxis


n.

1891, coined in German, 1888, by German botanist Wilhelm Pfeffer (1845-1920) from chemo- + Greek taxis "arrangement" (see taxidermy).

Online Etymology Dictionary, © 2010 Douglas Harper

Medicine definitions for chemotaxis

chemotaxis

[ kē′mō-tăksĭs ]

n.

The characteristic movement or orientation of an organism or cell along a chemical concentration gradient either toward or away from the chemical stimulus.chemotropism
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Science definitions for chemotaxis

chemotaxis

[ kē′mō-tăksĭs, kĕm′ō- ]

The characteristic movement or orientation of an organism or cell along a chemical concentration gradient either toward or away from the chemical stimulus. Bacteria exhibit chemotaxis when they move toward a source of nutrients.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.