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Wottest not; knowest not. [Obs.] Chaucer.

Homesickness; esp., a severe and sometimes fatal form of melancholia, due to homesickness.

Of or pertaining to nostalgia; affected with nostalgia.

Same as Nostalgia.

A genus of algæ. The plants are composed of moniliform cells imbedded in a gelatinous substance.

Perception; insight; acuteness. [Obs.] Methinks a man Of your sagacity and clear nostril should Have made another choice. B. Jonson.

or device proposed by a quack. The incentives of agitators, the arts of impostors and the nostrums of quacks. Brougham.

(Anat.) One of the bones at the base of a paired fin of a fish.

The mouth or anterior opening of a coelenterate animal.

Professing ignorance; involving no dogmatic; pertaining to or involving agnosticism. -- Ag*nos"tic*al*ly, adv.

That doctrine which, professing ignorance, neither asserts nor denies. Specifically: (Theol.)

An apparatus consisting of a slowly revolving disk, usually regulated by clockwork, by means of wich the action of external agents, as light and gravity, on growing plants may be regulated or eliminated.

A suborder of Bryozoa, usually having a circle of bristles below the tentacles.

Pertaining to, or furnishing, a diagnosis; indicating the nature of a disease.

To make a diagnosis of; to recognize by its symptoms, as a disease.

taining the nature of diseases by means of their symptoms or signs. His rare skill in diagnostics. Macaulay.

One versed in geognosy; a geologist. [R.]

Of or pertaining to geognosy, or to a knowledge of the structure of the earth; geological. [R.]

Knowing; wise; shrewd. [Old Slang] I said you were a gnostic fellow. Sir W. Scott.

The system of philosophy taught by the Gnostics.