sugar loaf

Collins Concise English Dictionary © HarperCollins Publishers::

sugar loaf, sugarloaf / ˈʃʊɡəˌləʊf/ noun ( -loaves / -ləʊvz/)

1. a large conical mass of hard refined sugar
2. something resembling this in shape

WordReference Random House Unabridged Dictionary of American English © 2026

sug•ar•loaf  (shŏŏg′ər lōf′), n., pl. -loaves 

(-lōvz′). 
1. a large, usually conical loaf or mass of hard refined sugar: the common form of household sugar until the mid-19th century.
2. anything resembling this in shape.

• late Middle English 1375–1425

sug•ar-loaf  (shŏŏg′ər lōf′), adj. 

1. resembling a sugar-loaf.

Also, sug′ar-loafed′. 

• 1600–10