back fat
variants: or backfat \ ˈbak-ˌfat \
: fatback sense 3 The hogs were weighed and an ultrasound wand rolled down their spine, a check for back fat thickness, which ultimately determines meat grade.— Babita Persaud, St. Petersburg (Florida) Times, 21 Feb. 2000 First Known Use of back fat
1904, in the meaning defined above
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