be+visible
131Visible Radiation — The visible portion of the electromagnetic spectrum with wavelengths from 0.4 to 0.76 microns …
132visible — adjective 1》 able to be seen. ↘Physics (of light) within the range of wavelengths to which the eye is sensitive. 2》 able to be perceived or noticed easily. ↘in a position of public prominence. 3》 relating to imports or exports of tangible …