Amphiploid see allopolyploid

amphipneustic a. [Gr. amphi, on both sides; pneustikos, breathe] (ARTHRO: Insecta) Refers to aquatic larva having the first and last pairs of spiracles open and functioning. see metapneustic; peripneustic.

amphipyrenin n. [Gr. amphi, on both sides; pyren, fruit stone] The substance of the nuclear membrane of cell nuclei.

amphisternous a. [Gr. amphi, on both sides; sternon, breastbone] (ECHINOD: Echinoidea) Used to describe the sternum structure in certain sea urchins; two equal plates that meet the labrum.

amphistome a. [Gr. amphi, on both sides; stoma, mouth] (PLATY: Trematoda) Having a ventral acetabulum located at the posterior end.

amphistomous a. [Gr. amphi, on both sides; stoma, mouth] (PLATY: Trematoda) Bearing a sucker at each extremity.

amphitelic a. [Gr. amphi, on both sides; telos, end] In mitosis, pertaining to orientation of the two chromatids of each chromosome to different spindle poles at the first meiotic division as opposed to syntelic.

amphitoky, ampherotoky n. [Gr. amphi, on both sides; tokos, birth] Parthenogenesis in which unfertilized eggs develop into either sex; deuterotoky; gametotoky.

amphitriaene n. [Gr. amphi, on both sides; triaina, trident] (PORIF) A spicule with three divergent rays at each extremity.

amphitrocha n. [Gr. amphi, on both sides; trochos, wheel] (ANN) Larva bearing two rings of cilia that function in locomotion.

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