coinstantaneous

[ koh-in-stuhn-tey-nee-uhs ]

adjective

1. occurring or existing at the same instant; simultaneous.

Other Words From

• coin·stan·tane·ous·ly adverb

Word History and Origins

Origin of coinstantaneous¹

First recorded in 1760–70; co- + instantaneous

Example Sentences

The flash was almost coinstantaneous in the two rings, but it was just perceptible first in the anterior one.

From Project Gutenberg

There is here no first, and no second; both are coinstantaneous and one.

From Project Gutenberg