Pĕc'ti-nate or Pĕc'ti-nā'ted, a.

a. [Lat. pectinatus, p. p. of pectinare, to comb, from pecten, pectinis, comb; Fr. pectiné.]

1. (Nat. Hist.) Having resemblance to the teeth of a comb; with very narrow, close divisions, in arrangement and regularity resembling the teeth of a comb; as, a pectinate leaf; pectinated muscles.
2. Shut together like two combs; interlaced. [Obs. and rare.] “Our fingers pectinated, or shut together.” Browne.

Pectinate claw, a claw having a serrate edge. It is found in some birds, and is supposed to be used in cleaning the feathers.