English noun: picometer | |||
| 1. | picometer (quantity) a metric unit of length equal to one trillionth of a meter | ||
| Synonyms | micromicron, picometre | ||
| Broader (hypernym) | metric linear unit | ||
| Part holonym | femtometer, femtometre, fermi | ||
| Part meronym | A, angstrom, angstrom unit | ||