Definition of "rotary"

rotary

/ˈɹoʊtəɹi/

adjective
not comparable
1. Capable of rotation.
  Quotations
  Volatiles of kecap manis and its raw materials were extracted using Likens-Nickerson apparatus with diethyl ether as the extraction solvent. The extracts were then dried with anhydrous sodium sulfate, concentrated using a rotary evaporator followed by flushing using nitrogen until the volume was about 0.5 ml.
  1997, A. J. Taylor, D. S. Mothram, editors, Flavour Science: Recent Developments‎, Elsevier, page 63
noun
plural rotaries
1. (New England, Atlantic Canada) A roundabout, traffic circle.
2. (chiefly with initial capital) Any of the clubs making up the international Rotary International movement for community service.