The Collaborative International Dictionary
Shad-waiter
Shad-waiter \Shad"-wait`er\, n. (Zo["o]l.) A lake whitefish; the roundfish. See Roundfish.
Wiktionary
shad-waiter
n. (context US dialect English) A lake whitefish; the roundfish ((taxlink Prosopium cylindraceum species noshow=1)).