Vidcap vs. Screencap — What's the Difference?

Difference Between Vidcap and Screencap
Definitions
Vidcap➦
(informal) A still image consisting of a frame captured from film or television.
Screencap➦
See screen dump.
Screencap➦
A still image taken from a movie or television program.
Screencap➦
(informal) A screenshot.
Screencap➦
(informal) To take a screenshot.