Actinotrocha :: Actinotrocha (n. pl.) A peculiar larval form of Phoronis, a genus of marine worms, having a circle of ciliated tentacles..
Aeolotropic :: Aeolotropic (a.) Exhibiting differences of quality or property in different directions; not isotropic.
Aeolotropy :: Aeolotropy (n.) Difference of quality or property in different directions.
Albatross :: Albatross (n.) A web-footed bird, of the genus Diomedea, of which there are several species. They are the largest of sea birds, capable of long-continued flight, and are often seen at great distances from the land. They are found chiefly in the southern hemisphere..
Anatropous :: Anatropous (a.) Having the ovule inverted at an early period in its development, so that the chalaza is as the apparent apex; -- opposed to orthotropous..
Anelectrode :: Anelectrode (n.) The positive pole of a voltaic battery.
Anelectrotonus :: Anelectrotonus (n.) The condition of decreased irritability of a nerve in the region of the positive electrode or anode on the passage of a current of electricity through it.
Anisotropic :: Anisotropic (a.) Not isotropic; having different properties in different directions; thus, crystals of the isometric system are optically isotropic, but all other crystals are anisotropic..