Term Name:	Aristotle's lantern
Synonyms:	Aristotles lantern
Definition:	Within the mouth of a sea urchin is an elaborate five-sided jaw structure called Aristotles lantern that can be partially extruded from the mouth. It is able to grind up calcareous exoskeletons of plants and animals.
Ontology:	Uberon Ontology [UBERON:0008253]