/nak"euhr/ , n. Brit.
1. a person who buys animal carcasses or slaughters useless livestock for a knackery or rendering works.
2. a person who buys and dismembers old houses, ships, etc., to salvage usable parts, selling the rest as scrap.
3. Dial. an old, sick, or useless farm animal, esp. a horse.
4. Obs. a harness maker; a saddler.
[ 1565-75; knack ( hnakkr nape of the neck, saddle) + -ER 1 ]