(astronomy) Any periodic comet with an orbital period of less than 200 years.

plural of short period comet

Alternative form of short-period comet

Alternative spelling of nonperiodic comet

(astronomy) a comet having a period of revolution shorter than 200 years and a perihelion distance smaller than 1.3 au

plural of near-Earth comet

plural of non-periodic comet

(astronomy) relating to comets

(archaic) third-person singular simple present indicative form of come

(biochemistry) A process in which a substance may be biodegraded only in the presence of a secondary source of carbon