facies noun. ['feɪʃɪi:z] Pl. same. E17.
[Latin: see FACE noun.]
1. a. joc. The face. Only in E17.
b. Medicine. The appearance or expression of the face, esp. when characteristic of a particular disease. L19.

2. Science. General aspect or appearance. E18.
b. spec. Geology. The character of a rock formation as displayed by its composition, texture, fossil content, etc.; a formation or body presenting a unified set of properties. M19.
c. Ecology. The characteristic set of dominant species in a habitat. E20.

[TahlilGaran] English Dictionary ▲