Emily Dickinson Lexicon

DE-FLUX'ION, n. [L. defluxio, from defluo, to flow down; de and fluo, to flow. See Flow.]

1. A flowing, running or falling of humors or fluid matter, from a superior to an inferior part of the body; properly, an inflammation of a part, attended with increased secretion.
2. A discharge or flowing off of humors; as, a defluxion from the nose or head in catarrh.