- a sustaining or being sustained; maintenance, support, or preservation
- something that sustains or supports; sustenance
Origin of sustentationMiddle English from Middle French from Classical Latin sustentatio from sustentare, frequentative of sustinere, to sustain
- Sustenance or maintenance, as with money.
- Something that sustains; a support.
Origin of sustentationMiddle English from Old French from Latin sustentātiō sustentātiōn- from sustentātus past participle of sustentāre to support ; see sustentacular .