a. 老了的, 衰老了的

[医] 衰老的, 变老的

[ adj ]
growing old
<adj.all>

Senescent \Se*nes"cent\, a. [L. senescent, p. pr. of senescere
to grow old, incho. fr. senere to be old.]
Growing old; decaying with the lapse of time. ``The night was
senescent.'' --Poe. ``With too senescent air.'' --Lowell.