Definitions for cephalization
ˌsɛf ə ləˈzeɪ ʃəncephal·iza·tion

WiktionaryRate this definition:0.0 / 0 votes

1. cephalizationnoun

   An evolutionary trend in which the neural and sense organs become centralized at one end (the head) of an animal

WikipediaRate this definition:0.0 / 0 votes

1. Cephalization

   Cephalization is an evolutionary trend in which, over many generations, the mouth, sense organs, and nerve ganglia become concentrated at the front end of an animal, producing a head region. This is associated with movement and bilateral symmetry, such that the animal has a definite head end. This led to the formation of a highly sophisticated brain in three groups of animals, namely the arthropods, cephalopod molluscs, and vertebrates.

Webster DictionaryRate this definition:1.0 / 1 vote

1. Cephalizationnoun

   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

WikidataRate this definition:0.0 / 0 votes

1. Cephalization

   Cephalization is considered an evolutionary trend, whereby nervous tissue, over many generations, becomes concentrated toward one end of an organism. This process eventually produces a head region with sensory organs. Cephalization is intrinsically connected with a change in symmetry. It accompanied the move to bilateral symmetry made in flatworms, with ocelli and pinnae placed in the head region. In addition to a concentration of sense organs, all animals from annelids on also place the mouth in the head region. This process is also tied to the development of an anterior brain in the chordates from the notochord. A notable exception to the trend of cephalization throughout evolutionary advancement is phylum Echinodermata, which, although having a bilateral ancestor, as evidenced by their embryology, develop into a pentaradial animal with no concentrated neural ganglia or sensory head region. However, some echinoderms have developed bilateral symmetry secondarily. In neuroembryology, neural induction of the ectoderm forms a neural tube which undergoes cephalization to form initially three, then five vesicles as a developing embryo. It is the internalized ectoderm which goes on to become the central nervous system, peripheral nervous system and epidermis.

EntomologyRate this definition:0.0 / 0 votes

1. Cephalization

   concentration toward the head.

How to pronounce cephalization?

1. Alex

   US English

   David

   US English

   Mark

   US English

   Daniel

   British

   Libby

   British

   Mia

   British

   Karen

   Australian

   Hayley

   Australian

   Natasha

   Australian

   Veena

   Indian

   Priya

   Indian

   Neerja

   Indian

   Zira

   US English

   Oliver

   British

   Wendy

   British

   Fred

   US English

   Tessa

   South African

How to say cephalization in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of cephalization in Chaldean Numerology is: 6

2. Pythagorean Numerology

   The numerical value of cephalization in Pythagorean Numerology is: 4

References

1. ^ Wiktionary
   https://en.wiktionary.org/wiki/Cephalization
2. ^ Wikipedia
   https://en.wikipedia.org/wiki/Cephalization
3. ^ Webster Dictionary
   https://www.merriam-webster.com/dictionary/cephalization
4. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=cephalization
5. ^ Entomology
   https://www.gutenberg.org/files/22748/22748-h/22748-h.htm#:~:text=cephalization