What is "unguentarium"

n. A small bottle used to store balms and scented oils etc

An unguentarium (plural "unguentaria") is a small ceramic or glass bottle found frequently by archaeologists at Hellenistic and Roman sites, especially in cemeteries. Its most common use was probably as a container for oil, though it is also suited for storing and dispensing liquid and powdered substances. Some finds date into the early Christian era. From the 2nd to the 6th century they are more often made of blown glass rather than clay. A few examples are silver or alabaster.

Unguentaria were used as product packaging in commerce and for funerary practice. They are distributed throughout the Mediterranean region of the Roman Empire from Palestine to Spain, and north into Britain and Germania. Their manufacture was nearly as widespread.