ˈ ̷ ̷ ̷ ̷ˌ ̷ ̷ noun
Etymology: tender (I) + loin
1. : a strip of tender meat consisting of the psoas muscle on each side of the vertebral column : a fillet of beef or pork — compare chateaubriand , filet mignon , tournedos
2.
[so called from its making possible a luxurious diet for a corrupt policeman]
: a district of a city largely devoted to vice and other forms of lawbreaking that encourage political or police corruption
the dives and shady tenderloins of the underworld — H.E.Barnes & N.K.Teeters