Another name for a line of longitude is a meridian.

Quick Scoop

Lines of longitude are the imaginary north–south lines on a globe that measure how far east or west a place is from the prime meridian. These lines are commonly called meridians or meridians of longitude in geography textbooks and school resources.

So if a quiz or homework asks, “What is another name for a line of longitude?”, the correct one-word answer is: meridian.

TL;DR: Another name for a line of longitude = meridian.

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