Huuliluun
Huuliluun is not an established term in standard human anatomy. In Estonian, huul means lip and luu means bone, and huuliluu would literally translate to “lip bone.” The form huuliluun is the genitive singular of huuliluu, effectively meaning “of the lip bone” or “lip bone’s.” Because huuliluu is not a widely recognized anatomical noun, huuliluun does not have a fixed, universally accepted definition in medical reference works.
Usage and context. The term may appear in Estonian-language texts as a hypothetical or metaphorical construction,
Relation to actual anatomy. In human anatomy, there is no discrete bone known as the lip bone.
See also. orbicularis oris; maxilla; mandible; facial bones; lip anatomy. Etymology notes: huul (lip) and luu (bone)