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 MARGINAL adj. 1. Extremely small. "A marginal increase in core
       can decrease GC time drastically." See EPSILON. 2. Of extremely
       small merit. "This proposed new feature seems rather marginal to
       me." 3. Of extremely small probability of winning. "The
       power supply was rather marginal anyway; no wonder it crapped
       out." 4. MARGINALLY: adv. Slightly. "The ravs here are only
       marginally better than at Small Eating Place."