(chemistry) Any of the different crystalline forms of a substance. / (linguistics) Any of the different phonological representations of a morpheme.

(UK, law, obsolete or historical) A prerogative given to the eldest coparcener (or whomever of the coparceners is so entitled by a court) to choose first after an inheritance is divided.

(biology) Any organism found in surroundings, or in association with another organism, in which it is normally absent

A manufacturer of metal type for printing.