periderm

English

Etymology

From peri- +‎ -derm

Noun

periderm (plural periderms)

  1. (botany) The outer layer of plant tissue comprising the phellem, phellogen and the phelloderm.
  2. (zoology) The perisarc; the hard outer layer of hydroids and other marine animals.

References
  • periderm in Webster’s Revised Unabridged Dictionary, G. & C. Merriam, 1913.

Anagrams
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