plural facies
1
: general appearance
a plant species with a particularly distinct facies
2
: an appearance and expression of the face characteristic of a particular condition especially when abnormal
adenoid facies
3
: a part of a rock or group of rocks that differs from the whole formation (as in composition, age, or fossil content)

Examples of facies 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.
Additionally, exaggerated allele-specific morphs based on normal-range variation in these genes recapitulates the syndromic facies of the craniofacial dysmorphologies with which they are associated. — Razib Khan, Discover Magazine, 26 Mar. 2012

Word History

Etymology

borrowed from New Latin faciēs, going back to Latin, "appearance, form" — more at face entry 1

First Known Use

1565, in the meaning defined at sense 2

Time Traveler
The first known use of facies was in 1565

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Cite this Entry

“Facies.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/facies. Accessed 6 Oct. 2026.

Medical Definition

plural facies
1
: an appearance and expression of the face characteristic of a particular condition especially when abnormal
adenoid facies
see hippocratic facies, moon facies
2
: an anatomical surface
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