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Pertaining to, or designating, an acid found of a urine of neat cattle, and probably identical with cresol.

Sung; close; firm; secure. Taut hand (Naut.), a sailor's term for an officer who is severe in discipline.

Same as Tautog.

Expressing the same thing with different words; -- opposed to allegorical. [R.] Coleridge.

in the curve it may begin to fall; as, an inverted cycloid with its base horizontal is a tautochrone.

Occupying the same time; pertaining to, or having the properties of, a tautochrone.

An edible labroid fish (Haitula onitis, or Tautoga onitis) of the Atlantic coast of the United States. When adult it is nearly black, more or less irregularly barred, with greenish gray. Called also blackfish, oyster fish, salt-water chub, and moll. [Written also tautaug.]

Tautological.

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.

One who uses tautological words or phrases.

To repeat the same thing in different words.

Repeating the same thing in different words; tautological. [R.] Tooke.

A repetition of the same meaning in different words; needless repetition of an idea in different words or phrases; a representation of anything as the cause, condition, or consequence of itself, as in the following lines: -- The dawn is overcast, the morning lowers, And heavily in clouds brings on the day. Addison.…

Relating to, or characterized by, tautomerism.

le. It is a special case of metamerism; thus, the lactam and the lactim compounds exhibit tautomerism.

Having the same essence; being identically of the same nature. [R.] Cudworth.

Pertaining to, or characterized by, tautophony; repeating the same sound.

Repetition of the same sound.

Belonging to the same zone; as, tautozonal planes.

Fully rigged, as a vessel; with all sails set; set on end or set right.