epitheca

名词 n.
中文释义

英文释义

名词 n.
  1. The upper half of the theca of a thecate protist such as a diatom or dinoflagellate.
    — Cellariiform, the orifices nearly confined to the convex frontal and lateral surfaces; the basal surface with a strong median calcareous keel, almost concealed by a flat membranous epitheca, which covers the whole zoarium […]

词形变化

epithecae plural

词源

Ancient Greek ἐπί (epí, “upon”) + θήκη (thḗkē, “case, box, receptacle”)
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