Wordnet 3.0
ADJECTIVE (1)
1.
enough to be estimated or measured;
- Example: "appreciable amounts of noxious wastes are dumped into the harbor"
The Collaborative International Dictionary of English v.0.48:
Appreciable \Ap*pre"ci*a*ble\, a. [Cf. F. appr['e]ciable.]
Capable of being appreciated or estimated; large enough to be
estimated; perceptible; as, an appreciable quantity. --
Ap*pre"ci*a*bly, adv.
[1913 Webster]
WordNet (r) 3.0 (2006):
appreciable
adj 1: enough to be estimated or measured; "appreciable amounts
of noxious wastes are dumped into the harbor"