2. Having a form belonging more especially to words which are not appellations of males or females; expressing or designating that which is of neither sex; as, a neuter noun; a neuter termination; the neuter gender. Intransitive; as, a neuter verb.
Origin: L, fr. Ne not _ uter whether; akin to E. Whether. See No, and Whether, and cf. Neither.
3. (Science: biology) An organism, either vegetable or animal, which at its maturity has no generative organs, or but imperfectly developed ones, as a plant without stamens or pistils, as the garden hydrangea; especially, one of the imperfectly developed females of certain social insects, as of the ant and the common honeybee, which perform the labors of the community, and are called workers.