on demand Definition

demand
verb demanded, demanding

1. To ask or ask for firmly, forcefully or urgently.

Thesaurus: insist on, command, order.
2. To require or need something.

Thesaurus: require, need, call for, necessitate, expect.
3. To claim something as a right.

noun

1. A forceful request or order.

Thesaurus: command, order, call, charge, request, bid.
2. An urgent claim for action or attention.

Example: makes great demands on one's time
Thesaurus: need, desire, requirement, interest, call.
3. People's desire or ability to buy or obtain (goods, etc).
4. econ.
The amount of any article, commodity, etc, which consumers will buy. Compare supply noun 6.

Derivative: demandable
adj

Derivative: demander
noun

Idiom: in demand

Very popular; frequently asked for.
Thesaurus: wanted, sought after, needed, requested.

Idiom: on demand

When asked for.

Etymology: 15c: from French demander to ask.