Momentaneous

Origin

Latin momentaneus: compare French momentané.

Full definition of momentaneous

Adjective

1. (archaic) momentary
• 1827, John Claridge, The Shepherd of Banbury's Rules to Judge of the Changes of the Weather, Grounded on Forty Years' Experience Chapter , Lightning is a great flame, very bright, extending every way to a great distance, suddenly darting upwards, there ending, so that it is only momentaneous.