Ground-wave
noun
1.
a radio wave that propagates on or near the earth’s surface and is affected by the ground and the troposphere.
noun
1.
a radio wave that travels directly between a transmitting and a receiving aerial Compare sky wave
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noun, Electricity. 1. a lead from an electric apparatus to the earth or to a ground connection.
- Groundwood
[ground-woo d] /ˈgraʊndˌwʊd/ noun, Papermaking. 1. that has been for making into pulp.
- Groundwood-pulp
noun 1. wood pulp consisting of groundwood that has not been cooked or chemically treated, used for making newsprint and other poorer grades of paper.
- Groundwork
[ground-wurk] /ˈgraʊndˌwɜrk/ noun 1. foundation or basis: He laid the groundwork for an international conference. /ˈɡraʊndˌwɜːk/ noun 1. preliminary work as a foundation or basis 2. the ground or background of a painting, etc n. mid-15c., from ground (n.) + work (n.). Cf. Middle Dutch grontwerck, Dutch grondwerk, German grundwerk. Originally “the solid base on […]