Late 19th century. From poly- + ancient Greek νῆσος island + -ic, after French polynésique. Compare slightly earlier insular sclerosis, multiple sclerosis.
Definition of polynesic in US English:
polynesic
adjectiveˌpɒlɪˈniːzɪk
Medicine rare, historical
Having a scattered distribution.
Origin
Late 19th century. From poly- + ancient Greek νῆσος island + -ic, after French polynésique. Compare slightly earlier insular sclerosis, multiple sclerosis.