a downward look, glance, gaze, etc.

(taxonomy) an infraorder

one thing

classification, categorization

to categorize, to classify

fishes

a group of people, animals, etc. / (group theory) a group

group of people, animals, etc.

in a mottled or splotchy fashion, irregularly / in an energetic and swarming or flocking manner

(colloquial) to be sexually turned on, to be horny