| Webster's Online Dictionary |
| Expressions | Domain | Definition | |
| Horn aerial | Electrical Engineering | An elementary aerial consisting of a waveguide in which one or more transverse dimensions increase towards the open end; a microwave antenna produced by flaring out the end of a circular or rectangular waveguide into the shape of a horn, for radiating radio waves directly into space. Source: European Union. (references) | |
Source: compiled by the editor from various references; see credits. | Top | ||