You searched for: “geophagous”
geophagous (adjective) (not comparable)
Regarding the consumption of soil; deriving nutrients from soil or the sediment: Geophagous ingestion pertains to eating earthy substances like clay which can be a result of starvation, lack of something in the diet, or possibly as a result of a mental illness.

A page about a pica eating More details about geophagy.

This entry is located in the following units: geo-, ge- + (page 16) phago-, phag-, -phage, -phagi, -phagic, -phagically, -phagia, -phagism, -phagist, -phagic, -phagous, -phagy (page 7)