heartwood

UK:**UK and possibly other pronunciationsUK and possibly other pronunciations/ˈhɑːtˌwʊd/US:USA pronunciation: respellingUSA pronunciation: respelling(härt′wŏŏd′)


WordReference Random House Unabridged Dictionary of American English © 2026
heart•wood  (härt′wŏŏd′),USA pronunciation n. 
  1. Botanythe hard central wood of the trunk of an exogenous tree;
    duramen.
  • heart + wood1 1795–1805

Collins Concise English Dictionary © HarperCollins Publishers::
heartwood /ˈhɑːtˌwʊd/ n
  1. the central core of dark hard wood in tree trunks, consisting of nonfunctioning xylem tissue that has become blocked with resins, tannins, and oils
    Compare sapwood
'heartwood' also found in these entries (note: many are not synonyms or translations):
duramen - sandalwood - sapwood - beefsteak mushroom - logwood - quassia - walnut

🗣️Forum discussions with the word(s) "heartwood" in the title:


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