marginal
adjective
[ ˈmɑːdʒɪn(ə)l ]
• relating to or at the edge or margin.
• "marginal notes"
• minor and not important; not central.
• "it seems likely to make only a marginal difference"
• (of a decision or distinction) very narrow; borderline.
• "a marginal offside decision"
marginal
noun
• a seat in a parliament or on a council that is held by a small majority and is at risk in an election.
• "she is defending a key marginal for the Tories"
• a plant that grows in water close to the edge of land.
• "remove any dead foliage on water lilies and marginals"
Origin:
late 16th century: from medieval Latin marginalis, from margo, margin- (see margin).
