truss principal
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principal — [prin′sə pəl] adj. [OFr < L principalis < princeps: see PRINCE] 1. first in rank, authority, importance, degree, etc. 2. that is or has to do with PRINCIPAL (n. 3) n. 1. a principal person or thing; specif., a) a ch … English World dictionary
Principal — Prin ci*pal, n. 1. A leader, chief, or head; one who takes the lead; one who acts independently, or who has controlling authority or influence; as, the principal of a faction, a school, a firm, etc.; distinguished from a {subordinate}, {abettor} … The Collaborative International Dictionary of English
principal rafter — noun : one of the upper diagonal members of a roof truss supporting the purlins and common rafters or those joints to which the roof boarding is secured see roof illustration * * * a diagonal member of a roof principal, usually forming part of a… … Useful english dictionary
principal — principalship, n. /prin seuh peuhl/, adj. 1. first or highest in rank, importance, value, etc.; chief; foremost. 2. of, of the nature of, or constituting principal or capital: a principal investment. 3. Geom. (of an axis of a conic) passing… … Universalium
principal — prin•ci•pal [[t]ˈprɪn sə pəl[/t]] adj. 1) first or highest in rank, importance, value, etc.; chief; foremost 2) of or constituting principal or capital: a principal investment[/ex] 3) a chief or head 4) the head or director of a school or, esp.… … From formal English to slang
principal rafter — a diagonal member of a roof principal, usually forming part of a truss and supporting the purlins on which the common rafters rest. See diag. under king post. [1655 65] * * * … Universalium
scissors truss — noun : a roofing truss in which the braces for the rafters cross like the members of a pair of scissors * * * 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 … Useful english dictionary
roof truss — roof truss, a truss in the framework of a roof, as the triangular one formed by two principal rafters and a tie beam … Useful english dictionary
scissors truss — 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. * * * … Universalium
bridge — bridge1 bridgeable, adj. bridgeless, adj. bridgelike, adj. /brij/, n., v., bridged, bridging, adj. n. 1. a structure spanning and providing passage over a river, chasm, road, or the like. 2. a connecting, transitional, or intermediate route or… … Universalium
building construction — Techniques and industry involved in the assembly and erection of structures. Early humans built primarily for shelter, using simple methods. Building materials came from the land, and fabrication was dictated by the limits of the materials and… … Universalium
