Definition of giga- in English:

giga-

Syllabification: giga-

combining form

Used in units of measurement.
1Denoting a factor of 109: gigahertz
2 Computing Denoting a factor of 230.

Origin

from Greek gigas 'giant'.

Definition of giga- in:

Get more from Oxford Dictionaries

Subscribe to remove ads and access premium resources

Word of the day retroflex
Pronunciation: ˈretrəˌfleks
adjective
turned backward