protective secretion of the mucous membranes; in the gut it lubricates the passage of food and protects the epithelial cells; in the nose and throat and lungs it can make it difficult for bacteria to penetrate the body through the epithelium
mistake one thing for another; "you are confusing me with the other candidate"; "I mistook her for the secretary"
make unclear, indistinct, or blurred; "Her remarks confused the debate"; "Their words obnubilate their intentions"
make unclear or incomprehensible; "The new tax return forms only confuse"
be confusing or perplexing to; cause to be unable to think clearly; "These questions confuse even the experts"; "This question completely threw me"; "This question befuddled even the teacher"
cause to feel embarrassment; "The constant attention of the young man confused her"