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Metalorganic.

An instrument for ascertaining the amount of ozone in the atmosphere, or in any gaseous mixture. Faraday.

ertaining to, or used for, the determination of the amount of ozone; of or relating to ozonometry.

The measurement or determination of the quantity of ozone.

An instrument combining a compass, sundial, and universal time dial. Brande & C.

See Phenomenon.

Relating to, or of the nature of, a phenomenon; hence, extraordinary; wonderful; as, a phenomenal memory. -- Phe*nom"e*nal*ly, adv.

That theory which limits positive or scientific knowledge to phenomena only, whether material or spiritual.

One who believes in the theory of phenomenalism.

A description, history, or explanation of phenomena. "The phenomenology of the mind." Sir W. Hamilton.

tever, in matter or spirit, is apparent to, or is apprehended by, observation; as, the phenomena of heat, light, or electricity; phenomena of imagination or memory. In the phenomena of the material world, and in many of the phenomena of mind. Stewart.

An instrument for measuring sounds, as to their intensity, or the frequency of the vibrations.

Physiognomist.

An instrument for gauging or testing a plane surface. See Surface gauge, under Surface.

The art or process of producing or gauging a plane surface.

A spirometer; a pneumometer.

The doctrine of polygons; an extension of some of the principles of trigonometry to the case of polygons.

The first name of a person, by which individuals of the same family were distinguished, answering to our Christian name, as Caius, Lucius, Marcus, etc.

See Prænomen.

; a standard flask for measuring and comparing the densities of liquids. [Also written pyknometer.]