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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