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wool fat

noun

: wool grease especially after refining : lanolin

Word History

First Known Use

1875, in the meaning defined above

Time Traveler
The first known use of wool fat was in 1875

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Cite this Entry

“Wool fat.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/wool%20fat. Accessed 29 Nov. 2025.

Medical Definition

wool fat

noun
: wool grease especially after refining : lanolin

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