Defn: Serving for, or aiding in, deglutition.
DEGRADATION Deg`ra*da"tion, n. Etym: [LL. degradatio, from degradare: cf. F. dégradation. See Degrade.]
1. The act of reducing in rank, character, or reputation, or of abasing; a lowering from one's standing or rank in office or society; diminution; as, the degradation of a peer, a knight, a general, or a bishop. He saw many removes and degradations in all the other offices of which he had been possessed. Clarendon.
2. The state of being reduced in rank, character, or reputation; baseness; moral, physical, or intellectual degeneracy; disgrace; abasement; debasement. The . . . degradation of a needy man of letters. Macaulay. Deplorable is the degradation of our nature. South. Moments there frequently must be, when a sidegradation of his state. Blair.
3. Diminution or reduction of strength, efficacy, or value; degeneration; deterioration. The development and degradation of the alphabetic forms can be traced. I. Taylor (The Alphabet).
4. (Geol.)
Defn: A gradual wearing down or wasting, as of rocks and banks, by the action of water, fro
5. (Biol.)
Defn: The state or condition of a species or group which exhibits degraded forms; degeneration. The degradation of the species man is observed in some of its varieties. Dana.
6. (Physiol.)