KUGEL
A baked pudding of noodles or potatoes, eggs, and seasonings, traditionally eaten by Jews on the Sabbath.

PASSBAND

The range of frequencies transmitted by a bandpass filter.

FONTANEL

Any of the soft membranous gaps between the incompletely formed cranial bones of a fetus or an infant. Also called soft spot.

SUCRALOSE

An intensely sweet, heat-stable derivative of sucrose that contains no calories.

GOOSANDER

A fish-eating duck (Mergus merganser), the male of which has a glossy greenish-black head and a white body.