Tautological \Tau`to*log"ic*al\, a. [Cf. F. tautologique.]

Involving tautology; having the same signification; as, tautological expression. -- Tau`to*log"ic*al*ly, adv. [1913 Webster]

Tautological echo, an echo that repeats the same sound or syllable many times. [1913 Webster]

Source: The Collaborative International Dictionary of English v.0.48
 

tautological adj : repetition of same sense in different words; "`a true fact' and `a free gift' are pleonastic expressions"; "the phrase `a beginner who has just started' is tautological"; "at the risk of being redundant I return to my original proposition"- J.B.Conant [syn: pleonastic, redundant, tautologic]

Source: WordNet (r) 2.0
 

Tautological \Tau`to*log"ic*al\, a. [Cf. F. tautologique.]

Involving tautology; having the same signification; as, tautological expression. -- Tau`to*log"ic*al*ly, adv.

Tautological echo, an echo that repeats the same sound or syllable many times.

Source: Webster's Revised Unabridged Dictionary (1913)