from The American Heritage® Dictionary of the English Language, 4th Edition
- n. See isoline.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A word or phrase in which each letter occurs the same number of times
- n. A line on a chart, such as a contour line, joining points that have the same value for some quantity
from The Century Dictionary and Cyclopedia
- n. A diagram exhibiting a family of curves for the purpose of showing a relation between three variables.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a line drawn on a map connecting points having the same numerical value of some variable
Portmanteau of isolated and pangram. (Wiktionary)