■ noun a tall straight-trunked Australian eucalyptus tree, typically with fire-charred fibrous bark on the lower trunk and with pale brown wood. [ Eucalyptus pilularis .]
Origin
C19: from black + butt 3 in the sense 'tree trunk'.
BLACKBUTT
Meaning of BLACKBUTT in English
Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004