present participle of darken

The act of something becoming darker.

Third-person singular simple present indicative form of darken

superlative form of dark: most dark

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

(idiomatic) To go to church to attend a service.

So as to darken.

(archaic) second-person singular simple present form of darken

(physics, astronomy) Of a star, specifically its equator: darker due to gravity darkening.

(physics, astronomy) The phenomenon of a star rotating so rapidly that it is oblate, with a larger radius and thus lower surface gravity at the equator (which is thus cooler and darker: gravity-darkened), and higher surface gravity at the poles (which are hotter and brighter: gravity brightened).