fa·ci·es (f  sh -z , -shz)n. pl. facies 1. Biology The general aspect or outward appearance, as of a given growth of flora. 2. Medicine The appearance or expression of the face, especially when typical of a certain disorder or disease. 3. Geology A rock or stratified body distinguished from others by its appearance or composition. [Latin faci s; see dh- in Indo-European roots.] |
| facies (fsh-z, -shz) Plural facies 1. a. A body of sedimentary rock distinguished from others by its lithology, geometry, sedimentary structures, proximity to other types of sedimentary rock, and fossil content, and recognized as characteristic of a particular depositional environment. b. For a metamorphic rock, the particular combination of pressure and temperature under which metamorphism occurred. 2. The general aspect or makeup of an ecological community, especially a local modification of a community characterized by a conspicuous or abundant species that is absent or less concentrated in other locations. 3. The appearance or expression of the face, especially when typical of a certain disorder or disease. |
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