An-ab´o-lism [Gr. ana, up; ballo, throw.] Constructive metabolism; the series of chemical changes by which a cell builds up simple and stable food into the highly complex and unstable living material.
An-ap-to-mor´phus [Gr. an-priv.; hapto, fasten; morphe, shape.]
An-gi-o-sper´mæ [Gr. angeion, vessel; sperma, seed.] Plants whose seeds are contained in a closed seed-vessel.
An-nu-la´ta [Lat. annulatus, ringed.] A division of Vermes, including marine worms, leeches, and earthworms.
An-the-rid´i-a [NL., < anthera, anther; Gr. dim. idion.] The male sexual organ in cryptogams answering to the anthers in phanerogams.
An-thro-po-pi-the´cus [Gr. anthropos, man; pithekos, ape.]
An´thro-poid [Gr. anthropos, man; eidos, form.] Manlike: said especially of the gibbons, orangs, gorillas, and chimpanzees.
An-ti-tox´ine [Gr. anti, opposed to; toxikon, poison.]
A-nu´ra [Gr. an, not; oura, tail.] An order of amphibians without a tail in the adult, including the toads and frogs.
A´phis [Gr. apheideis, lavish.] In Entomology a genus typical of Aphididæ. An aphid; a plant-louse.