: having, assuming, or occurring in various forms, characters, or styles : polymorphic
a polymorphous rash
polymorphous sexuality
polymorphously adverb

Examples of polymorphous in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Moreover, there are specific skin reactions that can happen during early summer with the first exposure to ultraviolet radiation, such as polymorphous light eruption (or PMLE), a reaction of sun sensitivity that happens when our skin is not exposed to the sun for long periods of time. Lauren Valenti, Vogue, 11 June 2024 Goddesses take pleasure in themselves, and a wonderful polymorphous sexuality underlies it all. Jerry Saltz, Vulture, 8 Mar. 2024

Word History

Etymology

Greek polymorphos, from poly- + -morphos -morphous

First Known Use

1754, in the meaning defined above

Time Traveler
The first known use of polymorphous was in 1754

Cite this Entry

“Polymorphous.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/polymorphous. Accessed 26 Mar. 2025.

Medical Definition

polymorphous

adjective
: having, assuming, or occurring in various forms : polymorphic
polymorphous skin rashes
polymorphously adverb
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