AQUARIUS. The eleventh sign in the zodiac (α Aquarius Sadalmelik).

AQUATIC. Inhabiting or relating to the water.

AQUATILE. An archaism for aquatic; thus Howell's lexicon describes the crocodile as "partly aquatil, partly terrestrial."

AQUATITES. The law-term for everything living in the water.

AQUE. Wall-sided flat-floored boats, which navigate the Rhine.

AQUEDUCT. Conduits or canals built for the conveyance of water.

AQUILA. The constellation Aquila, in which α Aquilæ is an important star of the first magnitude: used by seamen in determining the latitude and longitude; also in lunar distances. (See [Altair].)

AQUILON. The north-east wind, formerly much dreaded by mariners.

ARAMECH. The Arabic name for the star Arcturus.

ARBALIST [from arcus and balista]. An engine to throw stones, or the cross-bow used for bullets, darts, arrows, &c.; formerly arbalisters formed part of a naval force.