Catchfly \Catch"fly\, n. (Bot.) A plant with the joints of the stem, and sometimes other parts, covered with a viscid secretion to which small insects adhere. The species of {Silene} are examples of the catchfly.
catchfly n 1: any plant of the genus Silene [syn: {silene}, {campion}] 2: mostly perennial herbs with sticky stems that catch insects; widespread in north temperate zone [syn: {lychnis}]