When the units of sense in a passage of poetry don't coincide with the verses, and the sense runs on from one verse to another, the lines are said to be enjambed. When the verse length matches the length of the units of sense (clauses, sentences, whatever), the lines are said to be end-stopped. The term comes from the French for "straddling," since sentences "straddle" several lines. For examples, see the entry for end-stopped.

From the Guide to Literary Terms by Jack Lynch.
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Note: This guide is still in the early stages of development.
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