WARNING: Antidepressant medications are used to treat a variety of conditions, including depression and other mental/mood disorders. These medications can help prevent suicidal thoughts /attempts and provide other important benefits.
Definition of parallel for Students. 1  1 : a line or surface that lies at or moves in the same direction as another but is always the same distance from it. 2  2 : one of the imaginary circles on the earth's surface running in the same direction as the equator and marking latitude.
Figuratively, parallel means similar, or happening at the same time. A story might describe the parallel lives of three close friends. Parallel is from Greek parallÄlos, from the prefix para- beside plus allÄlÅn of one another, from allos other.. As a noun, a parallel is a way in which things resemble each otherââyou might draw parallels between the Vietnam War and the US invasion of Iraq.