ad hoc

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ad hoc

Contrived purely for the purpose in hand rather than planned carefully in advance. E.g. "We didn't know what to do about the sausage rolls, so we set up an ad-hoc committee".

ad hoc

Meaning "to this" in Latin, it refers to dealing with situations as they occur rather than ones that are repeated on a regular basis. For example, an "ad hoc query" is a question made up on the spot. An "ad hoc mobile network" is a communications network in which each node participates based on its location at the moment. See ad hoc query, ad hoc mode and mobile ad hoc network.