Definition of perpetuals:
(adj) :
Lasting forever, or for an indefinitely long time.
(adj) :
Set up to be in effect or have tenure for an unlimited duration.
(adj) :
Continuing; uninterrupted.
(adj) :
(botany) Flowering throughout the growing season.
(n) :
Ellipsis of perpetual check. [(chess) A draw forced by one player by putting the opponent's king in a potentially infinite series of checks.]