Final answer:
A line wipe is a type of transition in filmmaking and video editing where a vertical line appears to travel across the screen, removing the previous shot while revealing the next one.
Step-by-step explanation:
A vertical line that appears to travel across the screen, removing the previous shot while gradually revealing the next is called a line wipe in the context of filmmaking and video editing. Wipes are a type of transition that can involve various movements such as horizontal lines, diagonal lines, or spirals. They are used to create a visual transition between two shots in a film or video.