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peri- +‎ -treme


peritreme (plural peritremes)

  1. (zoology) That part of the integument of an insect which surrounds the spiracles.
  2. (zoology) The edge of the aperture of a univalve shell.

Part or all of this entry has been imported from the 1913 edition of Webster’s Dictionary, which is now free of copyright and hence in the public domain. The imported definitions may be significantly out of date, and any more recent senses may be completely missing.
(See the entry for peritreme in
Webster’s Revised Unabridged Dictionary, G. & C. Merriam, 1913.)