(Greek mythology) One of the Charites worshipped in Athens.

Growth or increase.

(obsolete, chemistry) any atom or group which, when added to a chromophore, causes a bathochromic shift in its spectrum

plural of auxochrome

(biology) The inability of a microorganism to synthesize an organic compound required for its growth, often as a result of mutation.

Any microorganism that has lost the ability to synthesize an organic compound required for its growth, usually as a result of mutation

(biology) Describing a strain of organism that requires a specific metabolic substance that the parent organism was able to synthesize by itself

plural of auxotroph

Of or pertaining to auxology

(biology) The study of growth