a roof truss having tension members extending from the foot of each principal rafter to a point on the upper half of its opposite member.
noun 1. Also called scissortailed flycatcher [siz-er-teyld] /ˈsɪz ərˌteɪld/ (Show IPA). a flycatcher, Muscivora forficatus, of the southern U.S., Mexico, and Central America, having a long, deeply forked tail. 2. any of various other birds having a long, forked tail.
scissura scis·su·ra (sĭ-sur’ə) n. pl. scis·su·rae (sĭ-sur’ē) A cleft or fissure.
noun, Archaic. 1. a longitudinal cleft or opening. noun 1. (rare) a longitudinal cleft scissure scis·sure (sĭzh’ər, sĭsh’-) n. A split or opening in an organ or part.
adjective 1. combining scientific and technical features: sci-tech culture. noun 2. a combination of science and technology: the amazing world of sci-tech.