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Webster’s Dictionary (1828)

98,828 entries. Headwords are matched first, then definition text.

8 words match “IMPONDERABLE”

IMPONDERABLE n. 2 definitions
An imponderable substance or body; specifically, in the plural, a name formely applied to heat, light, electricity, and magnetism, regarded as subtile flyids destitute of weight but in modern science little used.
IMPONDERABLENESS n.
The quality or state of being imponderable.
HEAT n.
l a form of molecular disturbance or vibration. It was formerly supposed to be a subtile, imponderable fluid, to which was given the name caloric.
IMPONDERABILITY n.
The quality or state of being imponderable; imponderableness.
IMPONDEROUS a.
Imponderable. [Obs.] Sir T. Browne. -- Im*pon"der*ous*ness, n. [Obs.]
INCOERCIBLE a.
confined in, or excluded from, vessels, like ordinary fluids, gases, etc.; -- said of the imponderable fluids, heat, light, electricity, etc.
THERMOGEN n.
Caloric; heat; regarded as a material but imponderable substance.
WEIGHTLESS a.
Having no weight; imponderable; hence, light. Shak.