Extermination \Ex*ter`mi*na"tion\, n. [Cf. F. extermination.]

1. The act of exterminating; total destruction; eradication; excision; as, the extermination of inhabitants or tribes, of error or vice, or of weeds from a field.

2. (Math.) Elimination. [R.]

Source: Webster's Revised Unabridged Dictionary (1913)