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American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(Physical Geography) another name for isopleth
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˈaɪ səˌgræm)

a line representing equality with respect to a given variable, used to relate points on maps, charts, etc.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.isogram - a line drawn on a map connecting points having the same numerical value of some variable
isobar - (meteorology)an isogram connecting points having equal barometric pressure at a given time
isochrone - an isogram connecting points at which something occurs or arrives at the same time
isoclinal, isoclinic line - an isogram connecting points of equal magnetic inclination
isohel - an isogram connecting points receiving equal amounts of sunshine
isotherm - (meteorology) an isogram connecting points having the same temperature at a given time
line - a spatial location defined by a real or imaginary unidimensional extent
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
Consider the familiar isogram DERMATOGLYPHICS with its 15 different letters--this contains just 2 elements, GOLD and LEAD.
An isogram is a word in which every letter appears the same number of times.
For example, poems 50, 125, and 162 are isograms on the initial letter (i.e., the same letter figures at the head of each of the eleven permutations); poems 78 and 123 are isograms on the final; poem 24 is an isogram on the diagonal (top left to bottom right), and poem 26 an isogram on the reverse diagonal.
As you can see, this doesn't quite fit the rules for an anagram or an isogram, but it seems to borrow ideas from both.
It has never been referred to as a 14-letter isogram. The word is listed in Webster's Second Edition.
It is more than an anagrammatical poem.Recreational linguists are familiar with the following "-gram" family members: anagram, pangram, isogram, even the obscureautomynorcagram.
With Will Shortz's help, I selected extreme examples of wordplay involving the largest word-square (Jeff Grant's 10-square), longest lipogram, longest isogram, longest anagram, highest-scoring Scrabble moves and games, shortest pangram, longest list of non-crashing five-letter words, and longest palindrome (David Stephens' 58795-1etter "Satire: Veritas").
Ambidextrous is also a twelve-letter isogram, meaning that no letter is repeated.
Because of the potentially large number of plural and possessive names, this type of pair isogram has been excluded.
Francis was represented by the fact that iaos is the only four-letter isogram in the Merriam-Webster unabridged having letters in alphabetic order in a certain scrambled alphabet, and Grant was introduced with his list of last-names-anagrams-of-first extracted from the New Zealand Electoral rolls.
ISOGRAM ([approximately equal to] Heterogram, cf Pair Isogram)
For instance, there is only one three-letter isogram, KEP, with no shittgram, so a reasonable estimate of b is 584/585.