portobello /ˌpoɚtəˈbɛloʊ/ noun also portabella /ˌpoɚtəˈbɛlə/ plural portobellos also portobellas
also portabella /ˌpoɚtəˈbɛlə/ plural portobellos also portobellas
Learner's definition of PORTOBELLO
[count] chiefly US
: a large brown mushroom used in cooking大帽盖蘑菇