D defs.my
Entry 1 sense Webster, 1913

Seconder

· Sec·ond·er · IPA
01 n. One who seconds{3} or supports what another attempts, affirms, moves, or proposes; as, the seconder of an enterprise or of a motion.
  1. 1.
    One who seconds{3} or supports what another attempts, affirms, moves, or proposes; as, the seconder of an enterprise or of a motion.