Associations to the word «Emission»

EMISSION, noun. That which is emitted or sent out; issue.

EMISSION, noun. The act of sending or throwing out; the act of sending forth or putting into circulation.

EMISSION LINE, noun. A spectral line resulting from the emission of electromagnetic radiation from an atom or other species as it decays from an excited state to one of lower energy.

EMISSION LINES, noun. Plural of emission line

EMISSION NEBULA, noun. (astronomy) A nebula composed of ionized gases which produce visible light (as distinct from a reflection nebula, which reflects the light produced by neighboring stars).

EMISSION THEORY, noun. (physics) A discredited scientific theory, once considered an alternative to special relativity, proposing that light is emitted at speed c relative to its source instead of applying the invariance postulate.

EMISSION, noun. The act of emitting; causing to flow forth.

EMISSION, noun. A substance that is emitted or released.

EMISSION, noun. The release of electrons from parent atoms.

EMISSION, noun. Any of several bodily processes by which substances go out of the body; "the discharge of pus".

EMISSION, noun. The occurrence of a flow of water (as from a pipe).