visible
/ˈvi-zə-bəl/
adjective
capable of being seen
situated in the region of the electromagnetic spectrum perceptible to human vision —used of radiation having a wavelength between about 400 nanometers and 700 nanometers
exposed to view
stars visible to the naked eye
visible light
noun
a visible person or thing : someone or something that can be seen or perceived
He achieved important results in both these endeavors, which, being visible, have received ample notice as the visibles of history usually do …
noun
a set of phonetic symbols based on symbols for articulatory position
speech reproduced spectrographically