Find the word definition

The Collaborative International Dictionary

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.


a. 1 of, relating to, or using tautology 2 using repetition or excessive wordiness; pleonastic or circumlocutionary


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]


In mathematics, tautological may refer to:


  • Tautological consequence

Geometry, where it is used as an alternative to canonical:

  • Tautological bundle
  • Tautological line bundle
  • Tautological one-form

Usage examples of "tautological".

Were it not tautological, I would list all the words I could think of to describe the goodness.

But in English, when we have used a word a couple of times in a paragraph, we imagine we are growing tautological, and so we are weak enough to exchange it for some other word which only approximates exactness, to escape what we wrongly fancy is a greater blemish.

If that were the extent of inheritance, the lookup table would produce only tautological definitions.

Actually all the technics of Darwinian evolution are simply tautological.

If that were the extent of inheritance, the lookup table would produce only tautological definitions.

Oh, yes, here we are: Tradition in Revolution, Democratic Oligarchy, Parmenidean Dynamics, Heraclitean Statics, Spartan Sybaritics, Tautological Dialectics, Boolean Eristic.

What Macbeth finds staggering in this is the ease with which the leaders of the field not only accept such tautologies blithely as inherent in their belief system, but are unable to see anything improper in tautological reasoning or the meaninglessness of any conclusions drawn from it.