: capable of being seen <Getting the shutters open was another matter. Though no fastener was visible, they were locked. — Franklin W. Dixon, The Secret Panel>
: easily seen or understood :obvious<Her anger was quite visible.>
Word Root of VISIBLE
The Latin word vidēre, meaning “to see”, and its form vīsis give us the roots vid and vis. Words from the Latin vidēre have something to do with seeing. Anything visible is able to be seen. Something evident is able to be seen, sensed, or understood. The video part of a television is the part that is seen, as opposed to the part that is heard. Vision is the ability to see. To visit is to go somewhere to see someone.
Medical Definition of VISIBLE
: capable of being seen : perceptible to vision <particulates visible to the naked eye>
: situated in the visible spectrum <visible light>