a Japanese cockle, an egg cockle: an edible marine bivalve mollusc of family Cardiidae, species Fulvia mutica

profits and losses / interests / good and harm

obstruct

infrared

extramarriage

(rare) to cover something, to cover something up

(rare) the act of covering / (rare) a covering, something that covers

hostility, hostile feeling

being roofed, covered

(possibly offensive, derogatory) madman, lunatic / madness, insanity / (by extension) enthusiast, fan