|a.||1.||Of or pertaining to a margin.|
|2.||Written or printed in the margin; as, a marginal note or gloss.|
|3.||At the lower limit; barely sufficient; as, of marginal utility.|
|Adj.||1.||marginal - at or constituting a border or edge; "the marginal strip of beach"|
|2.||marginal - of questionable or minimal quality; "borderline grades"; "marginal writing ability"|
|3.||marginal - of a bare living gained by great labor; "the sharecropper's hardscrabble life"; "a marginal existence"|
|4.||marginal - just barely adequate or within a lower limit; "a bare majority"; "a marginal victory"|
|5.||marginal - producing at a rate that barely covers production costs; "marginal industries"; "marginal land"|
|6.||marginal - of something or someone close to a lower limit or lower class; "marginal abilities"|
|(jargon)||marginal - 1. Extremely small. "A marginal increase in core
can decrease GC time drastically." In everyday terms, this
means that it is a lot easier to clean off your desk if you
have a spare place to put some of the junk while you sort
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 fried."