plac·oid (pl k oid)adj. Platelike, as the hard toothlike scales of sharks, skates, and rays. [Greek plax, plak-, flat stone, plate; see pl  k-1 in Indo-European roots + -oid.] |
placoid [ˈplækɔɪd]
adj
1. (Life Sciences & Allied Applications / Biology) platelike or flattened
2. (Life Sciences & Allied Applications / Zoology) (of the scales of sharks and other elasmobranchs) toothlike; composed of dentine with an enamel tip and basal pulp cavity
[from Greek plac-, plax flat]
ThesaurusLegend: Synonyms Related Words Antonyms
| Adj. | 1. | placoid - as the hard flattened scales of e.g. sharks planar, two-dimensional - involving two dimensions |
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