facies

noun pl. facies

1. the general appearance, aspect, or nature of anything
2. Ecol. a particular modification of the appearance or composition of a community
3. Geol. the characteristics of a rock body or part of a rock body that differentiate it from others, as in appearance, composition, etc.
4. Med.
   1. the appearance of the face as indicative of a specific disease or condition
   2. a surface