plural of Heisenberg picture

(medicine) One who undergoes the onset of a condition.

(philosophy, logic, law) To engage in the logical fallacy of begging the question (petitio principii). / To sidestep or fail to address a question. / (sometimes proscribed) To raise or prompt a que...

(music) A clarinet similar to the usual soprano clarinet but longer and with additional keys to enable playing several additional lower notes.