Definition of bulbous adjective from the Oxford Advanced Learner's Dictionary

 

bulbous

 adjective
adjective
BrE BrE//ˈbʌlbəs//
 
; NAmE NAmE//ˈbʌlbəs//
 
 
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shaped like a bulb; round and fat in an ugly way a bulbous red nose Word Origin late 16th cent.: from Latin bulbosus, or directly from bulb + -ous.
See the Oxford Advanced American Dictionary entry: bulbous