/sis"keuh wet'/ , n.
a variety of lake trout, Salvelinus namaycush siscowet, inhabiting the deeper waters of Lake Superior.
[ 1840-50, Amer.; shortening of Ojibwa pe·mite·wiskawe·t fish with oily flesh (deriv. of pimite·w- oil + -iskawe· (of fish) to have flesh (of the specified type), or deriv. of another word with the same final element) ]