a spring or fountainhead from which a stream flows.
the source of something:
the springhead of desire.
the source of a stream; spring
noun, plural springhouses [spring-hou-ziz] /ˈsprɪŋˌhaʊ zɪz/ (Show IPA) 1. a small storehouse built over a spring or part of a brook, for keeping such foods as meat and dairy products cool and fresh. noun 1. a storehouse built over a spring for keeping dairy products and meat cool and fresh
adjective, springier, springiest. 1. characterized by spring or elasticity; flexible; resilient: He walks with a springy step. 2. (of land) abounding in or having springs of water. adjective springier, springiest 1. possessing or characterized by resilience or bounce 2. (of a place) having many wells or springs of water
noun 1. the act or process of a person or thing that springs. 2. the mechanical springs or the type or arrangement of springs with which any of various devices are equipped, especially a vehicle. 3. Architecture. spring (def 43). verb (used without object), sprang or, often sprung; sprung; springing. 1. to rise, leap, move, […]
noun, Architecture. 1. a horizontal line between the springs of an arch or dome. 2. the rise or the angle of the rise of an arch.