We don't have synonyms for lunates yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are lunate, lunated and luxates.
(n) :
(archaeology) A small stone artifact, probably an arrowhead, with a blunt straight edge and a sharpened, crescent-shaped back, especially characteristic of the Mesolithic Period.
(n) :
(archaeology) A small stone artifact, probably an arrowhead, with a blunt straight edge and a sharpened, crescent-shaped back, especially characteristic of the Mesolithic Period.