cucumber Definition

the fruit of a vine (Cucumis sativus) of the gourd family cultivated as a garden vegetable; also : this vine

a plant disease especially of cucumbers that is caused by a single-stranded RNA virus (species Cucumber mosaic virus of the genus Cucumovirus, family Bromoviridae) and is transmitted chiefly by an aphid and produces mottled foliage and often pale warty fruits

a magnolia (Magnolia acuminata) of the eastern U.S. having fruit resembling a small cucumber

any of a class (Holothurioidea) of echinoderms having a tough muscular elongate body with tentacles surrounding the mouth —called also holothurian

a rather slender greenish-yellow beetle (Diabrotica undecimpunctata howardi) that feeds as an adult on various ornamental and crop plants and is a vector of wilt disease especially of cucumbers and melons

a Mediterranean plant (Ecballium elaterium) of the gourd family with oblong fruit that bursts from the peduncle when ripe and forcibly ejects the seeds