The handling of material (especially nest material) with the bill (of birds)

Provided with mandibles adapted for biting, as many insects.

(zoology) An insect having mandibles

To handle material using mandibles (or, in the case of birds, the bill)

plural of mandibulate

Provided with mandibles adapted for biting; mandibulate.

Pertaining to the mandible. / Having a pronounced lower jaw.

present participle of mandibulate