Asymptote

Asymptote, a line always approaching some curve but never meeting it.

Definition taken from The Nuttall Encyclopædia, edited by the Reverend James Wood (1907)

Asuras, The * Ataca`ma
[wait for the fun]
As`trakhan
Astral body
Astral spirits
Astrology
Astruc, Jean
Astu`rias
Asty`ages
Asty`anax
Asun`cion
Asuras, The
Asymptote
Ataca`ma
Atahualpa
Atalan`ta
At`avism
Atba`ra
Ate`
Athaba`sca
Athalia
Athanasian Creed
Athanasius