(music) Relating to seconds (intervals between pairs of adjacent notes in a diatonic scale).

Tachycineta thalassina, a small North American passerine bird of the swallow family.

An ancient Persian hat.

(transitive, agriculture) To prepare (land) with a tractor. / (transitive, science fiction) To move with a tractor beam. / (transitive, medicine, archaic) To treat by means of tractoration, or Perk...