1. Words in which no letter appears more than once; words with all unique letters.
Usage: Plural of isogram.; Common in word games and linguistics.
2. Lines on a map connecting points of equal value (such as temperature or pressure).
Usage: Technical/scientific usage.; Also called isopleth.

Examples

• The word 'background' is one of the longest common isograms in English.
• Isograms like 'strength' and 'uncopyrightable' are popular in word games.
• Meteorologists use isograms to show temperature patterns across a region.
• Finding isograms with seven or more letters is a fun linguistic challenge.
• The weather map displayed isograms indicating areas of equal rainfall.