noun
A structure composed of a plank, balanced in the middle, used as a game in which one person goes up as the other goes down.
A series of up-and-down movements.
A series of alternating movements or feelings.
(medicine, attributively) An abnormal breathing pattern caused by airway obstruction, characterized by paradoxical chest and abdominal movement.
(chess) A tactic in which a piece repeatedly gains material, while simultaneously creating an inescapable series of alternating direct and discovered checks.
verb
(intransitive) To use a seesaw.
(intransitive, by extension) To fluctuate.
(transitive) To cause to move backward and forward in seesaw fashion.
adjective
fluctuating.