- A conventional sign serving as an abbreviation.
- In chemistry, an abbreviation of the name of an element, radical, or compound, expressing in chemical formulas one atom or molecule of that element (H and O in H2O); in biochemistry, an abbreviation of trivial names of molecules used primarily in combination with other similar symbols to construct larger assemblies (Gly for glycine, Ado for adenosine, Glc for glucose).
- In psychoanalysis, an object or action that is interpreted to represent some repressed or unconscious desire, often sexual.
- A philosophical-linguistic sign.
[G. symbolon, a mark or sign, fr. sym-ballo, to throw together]
See Also: conventional signs, under sign
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Examples: glitazone, GI cocktail, etc.