Search the Dictionary

A combination of spectroscope and bolometer for determining the distribution of energy in a spectrum. --Spec`tro*bo`lo*met"ric (#), a.

Pertaining to a symbology; versed in, or characterized by, symbology.

One who practices, or who is versed in, symbology.

The art of expressing by symbols.

Ambiguous discourse; amphibology. If it oracle contrary to our interest or humor, we will create an amphiboly, a double meaning where there is none. Whitlock.

A glass used in subliming camphor. [Spelled also bombolo and bumbolo.]

bout its axis; as, a parabolic conoid, elliptic conoid, etc.; -- more commonly called paraboloid, ellipsoid, etc.

ormerly, sometimes the same as botanic physician. [U.S.] -- Eclectic school. (Paint.) See Bolognese school, under Bolognese.

of a pulley. Gorge circle (Gearing), the outline of the smallest cross section of a hyperboloid of revolution. -- Gorge hook, two fishhooks, separated by a piece of lead. Knight.

he portion to any other point of the portion without leaving the surface. Thus, some hyperboloids have one nappe, and some have two.

moves on a parabola as a directing curve; as, a parabolic conoid. Parabolic conoid, a paraboloid; a conoid whose directing curve is a parabola. See Conoid. -- Parabolic mirror (Opt.), a mirror having a paraboloidal surface which gives for parallel rays (as those from very distant objects) images free from aberration.…

e trace or record of itself. It consists essentially of a resonant vessel, usually of paraboloidal form, closed at one end by a flexible membrane. A stylus attached to some point of the membrane records the movements of the latter, as it vibrates, upon a moving cylinder or plate.

any substance which shines in the dark like phosphorus, as certain phosphorescent bodies. Bologna phosphorus (Chem.), sulphide of barium, which shines in the dark after exposure to light; -- so called because this property was discovered by a resident of Bologna. The term is sometimes applied to other compounds having…

. -- Solar phosphori (Physics), certain substances, as the diamond, siulphide of barium (Bolognese or Bologna phosphorus), calcium sulphide, etc., which become phosphorescent, and shine in the dark, after exposure to sunlight or other intense light. -- Solar plexus (Anat.), a nervous plexus situated in the dorsal and…

Of or pertaining to heat; due to heat; thermal; as, thermic lines. Thermic balance. See Bolometer. -- Thermic fever (Med.), the condition of fever produced by sunstroke. See Sunstroke. -- Thermic weight. (Mech.) Same as Heat weight, under Heat.