Adjective
1. abundantly filled with especially living things;
"the Third World's teeming millions""the teeming boulevard""harried by swarming rats"2. (of birds and animals) tending to move or live together in groups or colonies of the same kind;
"ants are social insects""the herding instinct in sheep or cattle""swarming behavior in bees"3. filled by being spread over; sometimes used in combination;
"the foe-swarming field"