E. Cobham Brewer 18101897. Dictionary of Phrase and Fable. 1898.
A committee of the whole house, in Parliamentary language, is when the Speaker leaves the chair and all the members form a committee, where anyone may speak once or more than once. In such cases the chair is occupied by the chairman of committees, elected with each new Parliament.
A standing committee, in Parliamentary language, is a committee which continues to the end of the current session. To this committee are referred all questions which fall within the scope of their appointment.