Definitions

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adj. Producible by a combination of wavelengths but not by any single wavelength.

from The Century Dictionary and Cyclopedia

  • Beyond the boundaries of the visible spectrum: said of lines or bands lying in the infra-red or ultra-violet regions.

Etymologies

extra- +‎ spectral (Wiktionary)

Examples

Sorry, no example sentences found.

Wordnik is becoming a not-for-profit! Read our announcement here.

Comments

Log in or sign up to get involved in the conversation. It's quick and easy.