[ˌɪnst(ə)nˈteɪnɪəs], (Adjective)

Definitions:
- occurring or done instantly
(e.g: modern methods of instantaneous communication)

- existing or measured at a particular instant
(e.g: measurement of the instantaneous velocity)


Phrases:

Origin:
mid 17th century: from medieval Latin instantaneus, from Latin instant- ‘being at hand’ (from the verb instare), on the pattern of ecclesiastical Latin momentaneus