pecten

[pek-tuh n] /ˈpɛk tən/
noun, plural pectens, pectines
[pek-tuh-neez] /ˈpɛk təˌniz/ (Show IPA)
1.
Zoology, Anatomy.
  1. a comblike part or process.
  2. a pigmented vascular membrane with parallel folds suggesting the teeth of a comb, projecting into the vitreous humor of the eye in birds and reptiles.
2.
any bivalve mollusk of the genus Pecten; scallop.
Origin
1350-1400; Middle English < Latin pecten comb, rake, scallop, pubes, akin to pectere, Greek pékein to comb, card
British Dictionary definitions for pecten

pecten

/ˈpɛktɪn/
noun (pl) -tens, -tines (-tɪˌniːz)
1.
a comblike structure in the eye of birds and reptiles, consisting of a network of blood vessels projecting inwards from the retina, which it is thought to supply with oxygen
2.
any other comblike part or organ
3.
any scallop of the genus Pecten, which swim by expelling water from their shell valves in a series of snapping motions
Word Origin
C18: from Latin: a comb, from pectere, related to Greek pekein to comb
pecten in Medicine

pecten pec·ten (pěk'tən)
n. pl. pec·tens or pec·ti·nes (-tə-nēz')
A body structure or an organ resembling a comb.