from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. Of or pertaining to the epitheca, the upper half of the shell of certain types of plankton.
from The Century Dictionary and Cyclopedia
- Pertaining to an epitheca.
- Situated on the outside of the body, as the radial water-vessels of a starfish. Compare hypothecal.
epitheca + -al (Wiktionary)
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