WordReference Random House Learner's Dictionary of American English © 2026
su•mac or su•mach /ˈsumæk, ˈʃu-/USA pronunciation
n. [uncountable]
WordReference Random House Unabridged Dictionary of American English © 2026- Plant Biologya shrub or small tree of the cashew family, having compound leaves and clusters of red, fleshy fruit.
su•mac
(so̅o̅′mak, sho̅o̅′-),USA pronunciation n.
- Plant Biologyany of several shrubs or small trees belonging to the genus Rhus of the cashew family, having milky sap, compound leaves, and small, fleshy fruit.
- a preparation of the dried and powdered leaves, bark, etc., of certain species of Rhus, esp. R. coriaria of southern Europe, used esp. in tanning.
- the wood of these trees.
- Arabic summāq
- Medieval Latin
- Middle English 1250–1300
'sumac' also found in these entries (note: many are not synonyms or translations):
sumach
- cashew family
- dwarf sumac
- fragrant sumac
- Japan wax
- lemonade berry
- Morocco
- ooze
- poison dogwood
- poison sumac
- Venetian sumac
- smoke tree
- smooth sumac
- staghorn sumac
- sumac wax