D defs.my
Entry 1 sense Webster, 1913

Phosphinic

/(fŏs*fĭn"ĭk)/ · Phos·phin·ic · IPA
01 a. Pertaining to, or designating, certain acids analogous to the phosphonic acids, but containing two hydrocarbon radicals, and derived from t…
  1. 1.
    Pertaining to, or designating, certain acids analogous to the phosphonic acids, but containing two hydrocarbon radicals, and derived from the secondary phosphines by oxidation.(Chem.)