Search Result for "altostratus": 
Wordnet 3.0

NOUN (1)

1. a stratus cloud at an intermediate altitude of 2 or 3 miles;
[syn: altostratus, altostratus cloud]


The Collaborative International Dictionary of English v.0.48:

altostratus \altostratus\, Alto-stratus \Al`to-stra"tus\, n. [L. altus high + L. & E. stratus.] (Meteor.) A cloud formation similar to cirro-stratus, but heavier and at a lower level; a stratus cloud at an intermediate altitude of 2 or 3 miles. [Webster 1913 Suppl. + WordNet 1.5]
WordNet (r) 3.0 (2006):

altostratus n 1: a stratus cloud at an intermediate altitude of 2 or 3 miles [syn: altostratus, altostratus cloud]