milk churning
Technical term for the process of agitating milk or cream to make butter.
Butter is made by churning milk.
Standard kanji spelling for 'milk churning'.
Variant kanji form using 攪 instead of 撹; both are used.
Compound of 撹 (かく, 'stir, agitate') and 乳 (にゅう, 'milk'). The exact historical derivation is uncertain, but the term is a straightforward technical compound.