tabun. & v. See Taboo.()n.[L.]1. A table; a tablet.()2. (Zol.) One of the transverse plants found in the calicles of certain corals and hydroids.()Tabula rasa () [L.], a smoothed tablet; hence, figuratively, the mind in its earliest state, before receiving impressions from without; -- a term used by Hobbes, Locke, and others, in maintaining a theory opposed to the doctrine of innate ideas.()