| Webster's Online Dictionary |
| Expressions | Domain | Definition | |
| Ear muff | Physics | 1: Hard cups which fit over the ear and are sealed to the head with soft cushion seals. Two types of seal are in general use: a "liquid seal" type comprises a soft annular tube filled with liquid, more robust cushions are filled with soft plastic foam. Source: European Union. (references) | |
| 2: Hearing protector consisting of an ear-cup to be pressed against each pinna or of a circumaural ear-cup to be pressed against the head around the pinna. The ear-cups can be pressed against the head with a special headband or neckband or by means of a device attached to a safety helmet or other equipment. Source: European Union. (references) | |||
Source: compiled by the editor from various references; see credits. | Top | ||
