1 Circulation (fluid dynamics), the path integral of the fluid velocity around a closed curve. 2  Circulation (journal), a journal published by the American Heart Association.  Atmospheric circulation, the large-scale movement of air.
An informal fallacy is an argument whose stated premises fail to support their proposed conclusion. Informal fallacies often come about because of an error in reasoning. The premises are then erroneously linked to the conclusion. In contrast to a formal fallacy, the error has to do with issues of inference because language is used to state the propositions; natural language allows to say more than the symbolism of formal logic can represent.
[count] informal â used to talk about feelings, ideas, etc., that come from your emotions and from what seems true or right rather than from logic or reason. She knew in her gut that he was lying. He knew he had to trust his gut [=instincts] and do what felt right.