gen. In various technical contexts: a protective covering, cage, hood, etc.

Any of various types of protective coverings or guards for the foot or feet.

something which breaks a person's fall (see break, v. 28b); something which lessens the impact of a fall or reduces the speed of falling.

A small piece of leather used to protect the fingers when grinding small tools. Obsolete. rare.

(a) = chain-wale, n., channel, n.2 (Smyth Sailor's Word-bk. 1867); (b) a board designed to prevent objects from falling on to workmen engaged in…

A mechanism for preventing a set of operations from being performed in any but the prescribed sequence.

a length of netting positioned off-shore to protect bathers from sharks; also shark netting.