Dictionary.com

isotac

[ ahy-suh-tak ]
/ ˈaɪ səˌtæk /
Save This Word!

noun
a line drawn on a map connecting all points where ice starts to melt at approximately the same period in spring.
QUIZ
WILL YOU SAIL OR STUMBLE ON THESE GRAMMAR QUESTIONS?
Smoothly step over to these common grammar mistakes that trip many people up. Good luck!
Question 1 of 7
Fill in the blank: I can’t figure out _____ gave me this gift.

Origin of isotac

iso- + -tac<Greek takênai to melt or takerós melting
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
FEEDBACK