from
The Collaborative International Dictionary of English v.0.48
Luxuriant \Lux*u"ri*ant\, a. [L. luxurians, p. pr. of luxuriare:
cf. F. luxuriant. See {Luxuriate}.]
1. Exuberant in growth; rank; excessive; profuse; very
abundant; as, a luxuriant growth of grass; luxuriant
foliage.
[1913 Webster]
Prune the luxuriant, the uncouth refine. --Pope.
[1913 Webster]
2. Producing luxuriant growth; very fertile; -- of soil.
[PJC]
3. Having or producing an abundance of elaborate details;
unrestrained; -- of imagery or ornamentation.
[PJC]
{Luxuriant flower} (Bot.), one in which the floral envelopes
are overdeveloped at the expense of the essential organs.
[1913 Webster]