D defs.my
Entry 1 sense Webster, 1913

Iso-

· I·so- · IPA /aɪsə-/
01 A prefix or combining form, indicating identity, or equality; the same numerical value; as in isopod, isomorphous, isochromatic.
  1. 1.
    A prefix or combining form, indicating identity, or equality; the same numerical value; as in isopod, isomorphous, isochromatic.(Chem.)