Fifteen different lettersSourced
Not region-specific · English meaning
Dermatoglyphics repeats none of its letters
The English word dermatoglyphics uses fifteen letters without repeating one. Such words are called heterograms, with isogram also used in related senses. A long word can be examined for the pattern of its letters as well as its ordinary meaning.
The length is built without a repeated letter.
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Heterogram (literature) · Wikimedia contributors
Adapted, summarized and translated from the source. Adapted text is also available under CC BY-SA 4.0.
Reviewed: 2026-10-05