Important with regard to (a subject or matter); pertaining; relevant.

Holding tenaciously to an opinion or purpose. / Stubbornly resolute or tenacious.

To disturb; to bother or unsettle. / (physics) To slightly modify the motion of an object. / (astronomy) To modify the motion of a body by exerting a gravitational force.

The quality of being pertinent.

The state or characteristic of being pertinacious.

Third-person singular simple present indicative form of pertain

simple past tense and past participle of pertain

(astronomy) A mathematical theory that attempts to describe the evolution of the constituents of the universe following the Big Bang

(geology) Of, pertaining to, or resembling perthite

(mineralogy) A laminated mixture of two feldspars: plagioclase and either orthoclase or microcline.