Meaning of PROBABILITY in English
/ ˌprɒbəˈbɪləti; NAmE ˌprɑːb-/ noun ( pl. -ies )
[ U , C ] how likely sth is to happen
SYN likelihood :
The probability is that prices will rise rapidly.
There seemed to be a high probability of success.
[ C ] a thing that is likely to happen :
A fall in interest rates is a strong probability in the present economic climate.
It now seems a probability rather than just a possibility.
[ C , U ] ( mathematics ) a ratio showing the chances that a particular thing will happen :
There is a 60% probability that the population will be infected with the disease.
- in all probability ...
—more at balance noun
late Middle English : from Latin probabilitas , from probabilis provable, credible, from probare to test, demonstrate.
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005