D defs.my
Entry 1 sense Webster, 1913

Retinoid

/rĕt'-ĭn-oid/ · Ret·i·noid · IPA /rˈɛtɪnɔɪd/
01 a. Resinlike, or resinform; resembling a resin without being such.
  1. 1.
    Resinlike, or resinform; resembling a resin without being such.