Definition of crocus noun from the Oxford Advanced Learner's Dictionary

 

crocus

 noun
noun
BrE BrE//ˈkrəʊkəs//
 
; NAmE NAmE//ˈkroʊkəs//
 
 
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a small yellow, purple or white flower that appears in early spring Word Origin late Middle English (also denoting saffron, obtained from a species of crocus): via Latin from Greek krokos, of Semitic origin and related to Hebrew karkōm and Arabic kurkum.
See the Oxford Advanced American Dictionary entry: crocus