(zoology) Any of a large group of animals, of the clade Cetartiodactyla, including the whales and even-toed ungulates.

(pharmacology) A certain ketolide antibiotic.

Alternative spelling of et cetera

(hypercorrect, obsolete) Alternative form of et cetera

(mineralogy) A hexagonal-pyramidal mineral containing antimony, hydrogen, oxygen, potassium, sodium, and sulfur.

(organic chemistry) An oily hydrocarbon of the ethylene series, obtained from spermaceti.

(astronomy) Acronym of communication with extraterrestrial intelligence.

(archaic, organic chemistry) An acid obtained when spermaceti, saponified by means of potash, is decomposed by an acid.

Whale-like mammals.

plural of ceterach