Search Result for "picometer": 
Wordnet 3.0

NOUN (1)

1. a metric unit of length equal to one trillionth of a meter;
[syn: picometer, picometre, micromicron]


WordNet (r) 3.0 (2006):

picometer n 1: a metric unit of length equal to one trillionth of a meter [syn: picometer, picometre, micromicron]