Definition of preoperculum in English:

preoperculum

(also praeoperculum)

noun ˌpriːɒˈpəːkjʊləmˌpriːə(ʊ)ˈpəːkjʊləm

Early 19th century; earliest use found in John Stark (fl. 1828). From pre- + operculum.

(also praeoperculum)

noun

Early 19th century; earliest use found in John Stark (fl. 1828). From pre- + operculum.

词汇	preoperculum
释义	Definition of preoperculum in English: preoperculum (also praeoperculum) noun ˌpriːɒˈpəːkjʊləmˌpriːə(ʊ)ˈpəːkjʊləm Ichthyology. The anterior of four bones forming the operculum in fishes. Origin Early 19th century; earliest use found in John Stark (fl. 1828). From pre- + operculum. Definition of preoperculum in US English: preoperculum (also praeoperculum) noun Ichthyology. The anterior of four bones forming the operculum in fishes. Origin Early 19th century; earliest use found in John Stark (fl. 1828). From pre- + operculum.
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