molja'u lujvo

m1=j1 is the mandible of arthropod m2=j2

This is a mandible of a insect/other arthropod. This is not to be confused with the mandible of vertrabrates which is xedja or dzixe'a

In notes:

x1 is a/the lower jaw of x2.
b1 is a mandible/jawbone (mandibula) performing function b2 in body of b3..