to search for something from a drawer, closet, etc.; to dig out.
to dig into the ground, with the snout.
To search (something) thoroughly.
To use a toothcomb on (something).
A comb with finely spaced teeth, chiefly as a metaphorical means of making a thorough search.
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.