toothcomb

Short definition from Wiktionary

Noun

1. 1
   A comb with finely spaced teeth, chiefly as a metaphorical means of making a thorough search.
2. 2
   A comb-like dental structure found in the lower jaws of certain primates consisting of long, flat front teeth with microscopic grooves, which are used for grooming fur.

Verb

1. 1
   To use a toothcomb on (something).
2. 2
   To search (something) thoroughly.