Alto-cumulus

2 definitions found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Alto-cumulus \Al`to-cu"mu*lus\, n. [L. altus high + L. & E.
     cumulus.] (Meteor.)
     A fleecy cloud formation consisting of large whitish or
     grayish globular cloudlets with shaded portions, often
     grouped in flocks or rows.
     [Webster 1913 Suppl.]



From WordNet (r) 2.0 [wn]:

  altocumulus
       n : a cumulus cloud at an intermediate altitude of 2 or 3 miles
           [syn: {altocumulus cloud}]
       [also: {altocumuli} (pl)]