Facies n. : The anterior part of the head; the face.

Facies n. : The general aspect or habit of a species, or group of species, esp. with reference to its adaptation to its environment.

Facies n. : The face of a bird, or the front of the head, excluding the bill.

Example:
How do geologists figure out sedimentary Facies?

Taxonomy
facies, Sedimentary facies, Metamorphic facies, Law, sediment, free encyclopedia, rock, characteristics, depositional environment, Reading, sedimentation, Cross, Homewood, states, distinctive rock, search, Cornberg, sandstone.

Defination from the web:
facies are a body of rock with specified characteristics. ... The term facies was introduced by the Swiss geologist Amanz Gressly in 1838 and was part of his significant contribution to the foundations of ...