head timber
Shipbuilding (now historical )
noun
Each of the upright pieces of timber which support the frame of the headrails.
Origin
Mid 18th century; earliest use found in William Falconer.
- spherical polar coordinates
- spherical triangle
- spherical trigonometry
- sphericity
- spheroid
- spheroidal
- spheroidicity
- spheroplast
- spherular
- spherule
- spherulite
- spherulitic
- sphincter
- sphincteral
- sphincteric
- sphingid
- sphingo-
- sphingolipid
- sphingomyelin
- sphingosine
- sphinx
- sphinx-like
- sp ht
- sphygmo-
- sphygmograph