- cephalization
-
An evolutionary trend in which the neural and sense organs become centralized at one end (the head) of an animalSee Also: telencephalization
Wikipedia foundation.
cephalization
Look at other dictionaries:
Cephalization — is considered an evolutionary trend,[1] whereby nervous tissue, over many generations, becomes concentrated toward one end of an organism. This process eventually produces a head region with sensory organs.[2] Cephalization is intrinsically… … Wikipedia
Cephalization — Ceph a*li*za tion, n. Domination of the head in animal life as expressed in the physical structure; localization of important organs or parts in or near the head, in animal development. Dana. [1913 Webster] … The Collaborative International Dictionary of English
cephalization — 1864, coined by U.S. zoologist James D. Dana (1813 1895) from Gk. kephale head on model of specialization, etc … Etymology dictionary
cephalization — (Amer.) n. (Zoology) tendency in the animal kingdom of vital organs to be located in or near the head (also cephalisation) … English contemporary dictionary
cephalization — [sef΄ə li zā′shən] n. [ CEPHAL(O) + IZATION] the tendency in the evolution of animal life for sensory organs, the nervous system, etc. to become centralized in or near the head … English World dictionary
cephalization — /sef euh leuh zay sheuhn/, n. Zool. a tendency in the development of animals to localization of important organs or parts in or near the head. [1860 65; CEPHAL + IZATION] * * * ▪ biology the differentiation of the anterior (front) end of an … Universalium
cephalization — ˌsefələ̇ˈzāshən, ˌlīˈz noun ( s) Etymology: cephal + ize + ation 1. : specialization of the anterior part of the animal body resulting in localization and concentration of sensory and neural organs in an anterior head 2. : the tendency to… … Useful english dictionary
cephalization — noun Date: 1864 a tendency in the evolution of organisms to concentrate the sensory and neural organs in an anterior head … New Collegiate Dictionary
cephalization — n. [Gr. kephale, head] The process by which the highest degree of specialization became localized in the anterior end, or in the head, in animal development … Dictionary of invertebrate zoology
cephalization — 1. Evolutionary tendency for important functions of the nervous system to move forward in the brain. 2. Initiation and concentration of the growth tendency at the anterior end of the embryo. * * * ceph·a·li·za·tion or Brit ceph·a·li·sa·tion .sef… … Medical dictionary
