Question 1

What does "slough off" mean?

Accepted Answer

(Biology) To shed or cast off dead skin, scales, or an outer layer

Question 2

How do you use "slough off" in a sentence?

Accepted Answer

Snakes slough off their skin several times a year as they grow.

Question 3

Is "slough off" formal or informal?

Accepted Answer

"slough off" is formal — used mainly in written or official contexts. The literal biological sense (skin, scales) is technical. The figurative sense (slough off old habits, a past identity) appears in literary and formal writing. The word 'slough' rhymes with 'tough', not 'though'.

slough off

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