Inflected forms: pl. dis·cus·es 1.Sportsa. A disk, typically wooden or plastic with a metal rim, that is thrown for distance in athletic competitions. b. A track-and-field event in which a discus is thrown. 2. A small, brilliantly colored South American freshwater fish (Symphysodon discus) that has a disk-shaped body and is popular in home aquariums. 3. Something resembling a flat circular plate; a disk. 4.Botany See disk (sense 5).
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