S0925700 (sŭs′tən-tā′shən, -tĕn-)n.1. Sustenance or maintenance, as with money.2. Something that sustains; a support.[Middle English, from Old French, from Latin sustentātiō, sustentātiōn-, from sustentātus, past participle of sustentāre, to support; see sustentacular.]sus′ten·ta′tive(-tā′tĭv) adj.
sustentative
(ˈsʌstɛnˌteɪtɪv) adj1. (Physiology) physiol relating to sustentation2. sustainingThesaurusSeesustentation