any myrtaceous tree of the mostly Australian genus Eucalyptus, such as the blue gum and ironbark, widely cultivated for the medicinal oil in their leaves (eucalyptus oil), timber, and ornament
WordReference Random House Learner's Dictionary of American English © 2025
eu•ca•lyp•tus /ˌyukəˈlɪptəs/USA pronunciation
n. [countable], pl. -ti (-tī), -tus•es.
WordReference Random House Unabridged Dictionary of American English © 2025- Plant Biologya tree chiefly from Australia and nearby islands having sweet-smelling evergreen leaves.
eu•ca•lyp•tus
(yo̅o̅′kə lip′təs),USA pronunciation n., pl. -ti (-tī),USA pronunciation -tus•es.
eu′ca•lyp′tic, adj.
- Plant Biologyany of numerous often tall trees belonging to the genus Eucalyptus, of the myrtle family, native to Australia and adjacent islands, having aromatic evergreen leaves that are the source of medicinal oils and heavy wood used as timber.
- Greek eu- eu- + kalyptós covered, wrapped, akin to kalýptein to cover
- Neo-Latin
- 1800–10
Collins Concise English Dictionary © HarperCollins Publishers::
'eucalyptus' also found in these entries (note: many are not synonyms or translations):
angophora
- ash
- bastard mahogany
- blackbutt
- bloodwood
- blue gum
- box
- cineole
- coolabah
- folivore
- gum myrtle
- gum tree
- gumnut
- gumtree
- gumwood
- ironbark
- jarrah
- karri
- koala
- mallee
- marri
- mountain ash
- myrtle family
- red gum
- river red gum
- sallee
- snow gum
- spotted gum
- stringy-bark
- tallow wood
- wandoo
- white mahogany
- woollybutt
- yellow gum