noun
General term for a mixture of flour and liquid used in cooking, before baking or frying. Covers both stiff dough and pourable batter.
パンを作るために練り粉をこねる。
Knead the dough to make bread.
天ぷらの練り粉は冷たく保つとサクサクに揚がる。
Keeping the tempura batter cold makes it fry up crispy.
生地 is a broader term for dough, batter, or fabric material; 練り粉 specifically emphasizes the flour-based mixture before cooking.
Compound of 練り (kneading) + 粉 (flour).