isotac [ahy-suh-tak] Word Origin noun
- a line drawn on a map connecting all points where ice starts to melt at approximately the same period in spring.
Origin of isotac iso- + -tac Greek takênai to melt or takerós melting
isotac [ahy-suh-tak] Word Origin noun
Origin of isotac iso- + -tac Greek takênai to melt or takerós melting