epitheca
noun
epi·theca
"+
1
: an external calcareous layer investing the lower portion of the theca of many corals
2
: the outer or upper half or valve of the diatom frustule compare hypotheca
epithecal adjective
"+
or epithecate
"+
Word History
Etymology
New Latin, from epi- + -theca
- giving away
- giving back
- giving birth to
- giving ground
- giving in
- giving in (to)
- giving in to
- giving notice
- giving of
- giving off
- giving one the creeps
- giving one the gate
- giving one's word
- giving out
- giving over
- giving over (to)
- giving over to
- giving rise to
- giving the lie to
- giving the third degree to
- giving up
- giving up (to)
- giving up the ghost
- giving up to
- giving way