epitheca

== English == === Etymology === Ancient Greek ἐπί (epí, “upon”) + θήκη (thḗkē, “case, box, receptacle”) === Noun === epitheca (plural epithecae) (microbiology, planktology) The upper half of the theca of a thecate protist such as a diatom or dinoflagellate. ==== Coordinate terms ==== hypotheca ==== Derived terms ==== epithecal ==== See also ==== Frustule === Anagrams === petechia