Placoid Definition

plăkoid
adjective
Platelike.
American Heritage
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
Having placoid scales.
American Heritage
Platelike.
American Heritage Medicine
Synonyms:
noun
Any fish having placoid scales, such as the sharks.
Wiktionary

Other Word Forms of Placoid

Noun

Singular:
placoid
Plural:
placoids

Origin of Placoid

  • Greek plax plak- flat stone, plate plāk-1 in Indo-European roots –oid

    From American Heritage Dictionary of the English Language, 5th Edition

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