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Vocabulary Entry
placoid
|adjective • noun
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A
adjective
Relating to or resembling a plate.
Example Sentences
"The placoid scales of sharks provide protection."
"Placoid structures are common in certain types of fish."
"The scientist studied the placoid features in marine biology."
N
noun
A type of scale found in certain fish, such as sharks.
Example Sentences
"The placoid on the shark's skin is rough to the touch."
"Researchers are examining the placoid to understand its role in hydrodynamics."
"Placoid scales are unique to a few species in the aquatic ecosystem."