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Noun edit

calaxin (uncountable)

  1. (organic chemistry) A tricyclic lactone [(2Z,4R,8R,9R,11R)-2,11-dimethyl-7-methylidene-6,12-dioxo-5,14-dioxatricyclo[9.2.1.04,8]tetradeca-1(13),2-dien-9-yl] 2-methylprop-2-enoate
  2. (biochemistry) A particular calcium-sensor protein that has a function in sperm motility