woolly butt

noun

1

: any of several eucalypts having woolly trunks: such as

a

: an Australian eucalypt (Eucalyptus longifolia) having hard wood used for many purposes and bark that is fibrous on old trees

b

: woolly gum

2

: bastard mahogany sense 1a(1)

Love words?

You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.

Start your free trial today and get unlimited access to America's largest dictionary, with:

• More than 250,000 words that aren't in our free dictionary
• Expanded definitions, etymologies, and usage notes
• Advanced search features
• Ad free!