Answer: ISOTHERM
ISOTHERM is a crossword puzzle answer that we have spotted 5 times.
Referring Clues:
- Line on a weather map showing equal temperatures
 - Weather map line
 - an isogram conecting points having same temp.at a given time
 - Map line
 - Wavy line on some maps
 
Last Seen In:
- Netword - May 19, 2018
 - Post Puzzler - June 06, 2010
 - Universal - March 30, 2010
 - LA Times - June 04, 2006
 - New York Times - March 07, 2001
 
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