Apedia

Parallel Lines Means Pærəlel Run Side Nearer Farther

Front parallel
Pron ['pærəlel]
Back 【PARALLEL】
Parallel lines run side by side, but never get nearer to or farther away from each other.
平行线并行地延伸,彼此间永不互相靠近或远离。
【重点词汇】
parallel adj. 平行的
Vocab
parallelbeing everywhere equidistant and not intersecting

In math, parallel means two lines that never intersect––think of an equals sign. 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 parallēlos, from the prefix para- "beside" plus allēlōn "of one another," from allos "other." As a noun, a parallel is a way in which things resemble each other––you might draw parallels between the Vietnam War and the US invasion of Iraq. In specialized use, a parallel can mean one of the imaginary circles on the surface of the Earth that are parallel to the equator––the 49th parallel divides the US and Canada.

All forms of 'parallel' will appear on average once every 227 pages.
nonparallel
parallel
parallelism
parallelize
unparallel
unparalleled

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