delimber vs tracked vehicle

delimber and tracked vehicle both are nouns.

Word	Noun	Adjective	Verb	Adverb
delimber	Yes	No	No	No
tracked vehicle	Yes	No	No	No

As nouns, tracked vehicle is a hypernym of delimber; that is, tracked vehicle is a word with a broader meaning than delimber:

delimber: a machine for removing limbs from trees with a saw or flailing chains.
tracked vehicle: a self-propelled vehicle that moves on tracks

Other hypernyms of delimber include machine.

delimber (noun)	tracked vehicle (noun)
a machine for removing limbs from trees with a saw or flailing chains.	a self-propelled vehicle that moves on tracks