thread-grinding
threadlike
thread-milling
thread-rolling
thred-speed
three
three-address
three-aspect
three-axial
three-axis
  three-barrelled
three-beam
three-bladed
three-body
three-cavity
three-circuit
three-colour
three-component
three-cone
three-core
three-cornered

    three-barrelled mortar

    трехствольный бомбомет