(medicine, infectious disease) A mask worn to catch bacteria shed in liquid droplets and aerosols from the wearer's mouth and nose. / A medical-grade mask worn during surgery.

A protective mask which covers the mouth and nose of the wearer, worn when in a dusty atmosphere, or when doing work which creates dust.

plural of dust mask

Corystes cassivelaunus, a burrowing crab with patterns on the carapace which may resemble a human face.

Reduvius personatus, an insect of the assassin bug family whose nymph camouflages itself with dust.

plural of masked hunter

plural of surgical mask

A small, often rounded mask covering only the eyes and the space between them.

plural of Jason mask

plural of procedure mask