Wordnet 3.0
NOUN (1)
1.
obtained from beef fat;
used in making margarine and soap and in lubrication;
The Collaborative International Dictionary of English v.0.48:
Oleo oil \O`le*o oil\
An oil expressed from certain animal fats (esp. beef suet),
the greater portion of the solid fat, or stearin, being left
behind. It is mixture of olein, palmitin, and a little
stearin.
[Webster 1913 Suppl.]
WordNet (r) 3.0 (2006):
oleo oil
n 1: obtained from beef fat; used in making margarine and soap
and in lubrication