precibarium UK /ˌpɹiː.sɪˈbɛəɹi.əm/US /ˌpɹi.sɪˈbɛɹi.əm/ noun1 •A canal formed by the union of the epipharynx and the hypopharynx, that links the food canal and the cibarial pump in some insects formsprecibaria