(biology, physics) The application of nanotechnology to biological research; especially the development of advanced imaging systems

(anatomy) A branch of the ophthalmic artery that passes to the retina in the middle of the optic nerve and branches to form the arterioles of the retina.

(ichthyology) A member of the family Cyprinidae, which includes other fish such as the common carp, goldfish, and the smaller minnows.

A gulf to the south of the USA and to the east and north of Mexico.