Definition of whitetop
1a (1) : a redtop (Agrostis alba) (2) : a grass (Fluminea festucacea) of northwestern North America that is an important source of food for wild birds (3) less commonly white topped grass : any of several grasses of the genus Danthonia (especially D. pilosa) b : fleabane c : any of several Australian eucalypts; especially : a widely distributed blackbutt (Eucalyptus pilularis) d : hoary cress
2 : a covered wagon with a white top
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First Known Use of whitetop
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