(physics) A hypothetical mirrored counterpart to ordinary physical matter.

(obsolete, rare) Mark's point; bullseye.

plural of May game

(now chiefly historical) An entertainment held as part of the spring celebrations in May, especially on May Day. / (now regional) An object of ridicule; a laughingstock.

Pertaining to a relationship in which one person is much older than the other.

plural of bill of material

Alternative form of labor market

(uncommon, historical, obsolete) Alternative form of manifer (“gauntlet for jousting”)

(chess) A checkmate, delivered by a knight, in which the mated king is unable to move because he is surrounded (or smothered) by his own pieces.

The Third World; the developing countries of Asia, Africa and Latin America.