(idiomatic, used to convey serious intent) To be serious, especially where achieving a specific end against opposition is concerned.

(astronomy, celestial mechanics) An orbital parameter of a celestial body (in an elliptic orbit); the mean motion multiplied by the time since the last passage through periapsis; the angle PCM (measured in radians) defined by P = the periapsis, C = the center of the elliptical orbit, and M = the mean planet.

(astronomy, celestial mechanics) An angle of 𝜏 (radians) divided by the orbital period (of a celestial body in an elliptic orbit).

(astronomy, celestial mechanics) An imaginary celestial body (corresponding to another, real, orbiting one) which orbits with constant speed along an auxiliary circle (a circle which shares a diameter with the major axis of the elliptical orbit of the corresponding real celestial body), such that its position coincides with the position of the corresponding, real celestial body when that body passes through periapsis.

present participle of mean-mouth

(transitive) To speak unkindly and critically about; to badmouth.

simple past tense and past participle of mean-mouth

Third-person singular simple present indicative form of mean-mouth

To imply or intend to convey with one's words; used to correct or clarify one's previous utterance, or to seek such clarification.

plural of mean white