adj.1 a of or written in a margin. b having marginal notes.
2 a of or at the edge; not central. b not significant or decisive (the work is of merely marginal interest).
3 Brit. (of a parliamentary seat or constituency) having a small majority at risk in an election.
4 close to the limit, esp. of profitability.
5 (of the sea) adjacent to the shore of a State.
6 (of land) difficult to cultivate; unprofitable.
7 barely adequate; unprovided for.
Phrases and idioms:
marginal cost the cost added by making one extra copy etc.
Derivatives:
marginality n. marginally adv.
Etymology: med.L marginalis (as MARGIN)