(astronomy, geology) A long, narrow, steep-sided depression on a planet (often other than Earth), a moon, or another body in the Solar System. / (astronomy, obsolete, rare) An aurora.

plural of chasma.

plural of chasma

Of or like a chasm.

plural of chasmataspidid

(zoology) Any of the Chasmataspidida, an extinct group of chelicerate arthropods.

(rare) Chasmal (of or like a chasm).

An antileishmanial diterpenoid alkaloid present in aconites

(organic chemistry) A particular C19-norditerpenoid.