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Freebase(0.00 / 0 votes)Rate this definition: Materiel. Materiel is a term used in English for equipment and supplies in military and commercial supply chain management. In a military context, materiel relates to the specific needs of a force to complete a specific mission. The term is also often used in a general sense to describe the needs of a functioning army.
variable cost. The costs of production that vary directly in proportion to the number of units produced. Variable costs often include labor expenses and raw material costs, because labor and raw material usually must be increased to increase output.ariable cost. The costs of production that vary directly in proportion to the number of units produced. Variable costs often include labor expenses and raw material costs, because labor and raw material usually must be increased to increase output.