| COLOSTRUMS | • colostrums n. Plural of colostrum. • COLOSTRUM n. (Latin) milk secreted for a few days after parturition, characterised by high protein and antibody content. |
| DIESTRUMS | • DIESTRUM n. a period of sexual inactivity, also DIESTRUS. |
| EMPLASTRUMS | • EMPLASTRUM n. a medicated plaster, also EMPLASTRON. |
| ESTRUMS | • estrums n. Plural of estrum. • ESTRUM n. (Latin) the period of heat in female mammals, also OESTRUM, ESTRUS, OESTRUS. |
| HIPPEASTRUMS | • HIPPEASTRUM n. any plant of the South American genus Hippeastrum, bulbous, with white or red flowers. |
| HUMSTRUMS | • humstrums n. Plural of humstrum. • HUMSTRUM n. a hurdy-gurdy. |
| LIGUSTRUMS | • ligustrums n. Plural of ligustrum. • LIGUSTRUM n. a plant of a genus that comprises the privets. |
| LUSTRUMS | • lustrums n. Plural of lustrum. • LUSTRUM n. (Latin) a period of five years. |
| NOSTRUMS | • nostrums n. Plural of nostrum. • NOSTRUM n. (Latin) any secret, quack or patent medicine; any favourite remedy or scheme. |
| OESTRUMS | • oestrums n. Plural of oestrum. • OESTRUM n. (Latin) the period of heat in female mammals, also ESTRUM, ESTRUS, OESTRUS. |
| ORGANISTRUMS | • organistrums n. Plural of organistrum. • ORGANISTRUM n. an early musical instrument resembling the hurdy-gurdy. |
| PLASTRUMS | • PLASTRUM n. a fencer's padded breast-shield; the underside of a turtle's shell, also PLASTRON. |
| RASTRUMS | • rastrums n. Plural of rastrum. • RASTRUM n. (Latin) a music-pen. |
| ROSTRUMS | • rostrums n. Plural of rostrum. • ROSTRUM n. (Latin) a beaklike process or part. |
| SEQUESTRUMS | • sequestrums n. Plural of sequestrum. • SEQUESTRUM n. (Latin) a portion of dead bone which becomes separated from the sound portion, as in necrosis. |
| SISTRUMS | • sistrums n. Plural of sistrum. • SISTRUM n. (Latin) a kind of rattle, consisting of a wooden or metal frame fitted with loose strips of metal and disks which jingled when moved. |
| STRUMS | • strums v. Third-person singular simple present indicative form of strum. • Strums prop.n. Plural of Strum. • STRUM v. to play a stringed instrument with the fingers. |