PONS ASINORUM


Meaning of PONS ASINORUM in English

[ ˌasɪ'nɔ:rəm ]

■ noun a theory or formula that is difficult for learners to grasp.

Origin

C18: L., lit. 'bridge of asses', term taken from the fifth proposition of the first book of Euclid.

Concise Oxford English vocab.      Сжатый оксфордский словарь английского языка.