[dʌɪˈamɪtə], (Noun)

Definitions:
- a straight line passing from side to side through the centre of a body or figure, especially a circle or sphere

- a unit of linear measurement of magnifying power


Phrases:

Origin:
late Middle English: from Old French diametre, via Latin from Greek diametros (grammē) ‘(line) measuring across’, from dia ‘across’ + metron ‘measure’