Definition of geotechnics in US English:

geotechnics

plural noun

  • treated as singular The branch of civil engineering concerned with the study and modification of soil and rocks.

    • ‘Further detailed studies were carried out under the following headings: socio-economic issues, agriculture, archaeology and heritage, engineering, flora and fauna, geotechnics, landscape and traffic.’

Pronunciation

geotechnics

/ˌjēōˈtekniks/