astronome, n.m., astronomer.
astronomie, n.f., astronomy.
astronomique, adj., astronomical, astronomic.
astronomiquement (-mān), adv., astronomically.
astuce, n.f., craft, guile, wile, cunning.
astucieusement, adv., craftily, cunningly.
astucieu-x, -se, adj., crafty, wily.
asyle. V. asile.
asymétrie, n.f., asymmetry.
asymptote, n.f., (geom.) asymptote.