Definition of Placoid in English :

Define Placoid in English

Placoid meaning in English

Meaning of Placoid in English

Pronunciation of Placoid in English

Placoid pronunciation in English

Pronounce Placoid in English

Placoid

see synonyms of placoid

Adjective

1. placoid, platelike

as the hard flattened scales of e.g. sharks

WordNet Lexical Database for English. Princeton University. 2010.


Placoid

see synonyms of placoid
adjective
1. 
platelike or flattened
2. 
(of the scales of sharks and other elasmobranchs) toothlike; composed of dentine with an enamel tip and basal pulp cavity

Collins English Dictionary. Copyright © HarperCollins Publishers


Placoid

see synonyms of placoid
adjective
Zoology
of or having scales that are periodically shed and replaced, consisting of a dentin base and an enamel-covered surface, as in cartilaginous fishes

Webster’s New World College Dictionary, 4th Edition. Copyright © 2010 by Houghton Mifflin Harcourt. All rights reserved.


Placoid

see synonyms of placoid
adj.
1. Platelike.
2.
a. Relating to or being a kind of fish scale that is a toothlike plate with a protruding spine, characteristic of sharks, skates, and rays.
b. Having placoid scales.

The American Heritage ® Dictionary of the English Language, Fifth Edition copyright ©2018 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.