subtrench
/ˈsʌbtrɛn(t)ʃ/Chiefly Engineering
noun
A trench dug within another trench; a secondary or subsidiary trench.
Origin
Mid 17th century. From sub- + trench.
- green butter
- green card
- green-carder
- green channel
- green charge
- green cheese
- green chemistry
- greenchop
- green circle
- Green Cloth
- green-coat
- green-coated
- green cod
- green-collar
- green consumerism
- green cormorant
- green corn
- green crab
- green crop
- green cross
- Green Cross Code
- green curry
- green curry paste
- green curtain
- green dragon