cochineal

n [U] bright red colouring-matter made from the dried bodies of certain tropical American insects 胭脂虫红（由南美热带胭脂虫乾骸制成的鲜红色物质）.

coat, coat of arms (also arms), coat of mail, coat-hanger, coat-tails, coax, coaxing, cob, cobalt, cobber, cobble, cobbler, cobblers, COBOL (also Cobol), cobra, cobweb, coca, Coca-Cola, cocaine, coccyx, cochlea, cock, cock-a-doodle-doo, cock-a-hoop, cock-a-leekie, cock-crow, cock-eyed, cock-fight, cock-fighting, cock-roach, cockroach, cock-up, cockade, cockatoo, cockchafer, cockcrow, cocked, cocked hat, cocker, cockerel, cockily,