Iris and Spectrum

Iris noun - Muscular diaphragm that controls the size of the pupil which in turn controls the amount of light that enters the eye; it forms the colored portion of the eye.

Spectrum and iris are semantically related. In some cases you can replace term "Spectrum" with "Iris", this nouns are similar.

Spectrum noun - The distance or extent between possible extremes.

Iris and spectrum are semantically related. Sometimes you can replace term "Iris" with "Spectrum", this nouns are similar.

Nearby Words: spectral, specter, spectre, spectrally