light spectrum

English

noun
Definitions
  • (physics) The portion of the electromagnetic spectrum that is visible to humans.
  • (physics) an extension of the human-visible spectrum to include near-visible wavelengths, primarily near infrared.

Etymology

Compound from English light (not heavy, lacking weight, not weighed down, ignite, very like, come, make less heavy, get down, same as, drop, illuminate, lacking weight mental gravity, shine, lacking mental gravity, weak, pale, bright, lighten, l, luminous, visible, little weight, make bright, dismount, unload) + English spectrum (range of electromagnetic wavelengths).

Origin

English

spectrum

Gloss

range of electromagnetic wavelengths

Timeline

Distribution of cognates by language

Geogrpahic distribution of cognates

Cognates and derived terms