What does dehairing mean?
Dehairing refers to the removal of hair from animal hides or skins, most commonly as an essential early step in turning rawhide into leather. In traditional tanneries it is achieved chemically, typically by treating the hide with lime and sodium sulfide to loosen the hair so it can be scraped away; mechanically, machines with rotating blades or rubber fingers perform the same task. The term also applies outside tanning, notably in meat processing, where pig carcasses are scalded and passed through dehairing equipment. Because residual hair would ruin the texture and appearance of finished leather, thorough dehairing directly affects product quality. It is chiefly a technical term confined to industrial contexts rather than everyday speech, though its meaning is transparent: the prefix 'de-' signals removal, and 'hair' names what is removed.
The process or act of removing hair from animal hides, skins, or other materials, especially as a preparatory stage in leather manufacture.
"Careful dehairing prevents defects that would otherwise appear on the surface of the finished leather."
Used almost exclusively in technical and industrial contexts.
Present participle and gerund of the verb 'dehair': to remove hair from something.
"The workers were dehairing hides in the beamhouse all morning."
Rarely pluralized, as the term denotes a mass process rather than countable items; the plural appears only when referring to multiple instances or types of the procedure.
"Different tanneries employ different dehairings depending on the type of hide."
Every leather jacket you own survived a chemical bath called dehairing before it was ever stitched.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of dehairing
Dehairing is formed transparently within English from the prefix 'de-', indicating removal or reversal, combined with 'hair', a word of Old English origin (hær), plus the '-ing' suffix. It functions both as the noun denoting the removal process and as the gerund of the verb 'to dehair'. The compound follows a productive Germanic pattern of 'de-' verbs of removal (compare deflea, deworm) and has no Latin or Greek cognates, being a purely English formation.
Related word forms
How dehairing is actually used
Primarily a technical term used in the leather, fur, and meat-processing industries; rare in everyday conversation. It also functions as the present participle and gerund of the verb 'dehair'.
Easily confused with dehairing
Shearing cuts wool or hair off with clippers, while dehairing removes the hair itself from a hide or skin as part of processing.