| STRUM | • strum v. (Transitive, intransitive) To play (a guitar or other stringed instrument) using various strings simultaneously. • strum n. The sound made by playing various strings of a stringed instrument simultaneously. • strum n. The act of strumming. |
| ESTRUM | • estrum n. Synonym of oestrus (female animal’s readiness to mate). • ESTRUM n. (Latin) the period of heat in female mammals, also OESTRUM, ESTRUS, OESTRUS. |
| LUSTRUM | • lustrum n. (Historical) A lustration: a ceremonial purification of the people of Rome performed every five years… • lustrum n. (By extension, literary) Synonym of quinquennium: Any 5-year period. • LUSTRUM n. (Latin) a period of five years. |
| NOSTRUM | • nostrum n. A medicine or remedy in conventional use which has not been proven to have any desirable medical effects. • nostrum n. (By extension) An ineffective but favorite remedy for a problem, usually involving political action. • NOSTRUM n. (Latin) any secret, quack or patent medicine; any favourite remedy or scheme. |
| OESTRUM | • oestrum n. Alternative spelling of estrum. • OESTRUM n. (Latin) the period of heat in female mammals, also ESTRUM, ESTRUS, OESTRUS. |
| RASTRUM | • rastrum n. A five-pointed writing implement used to draw parallel lines of a staff in sheet music. • RASTRUM n. (Latin) a music-pen. |
| ROSTRUM | • rostrum n. A dais, pulpit, or similar platform for a speaker, conductor, or other performer. • rostrum n. A platform for a film or television camera. • rostrum n. The projecting prow of a rowed warship, such as a trireme. |
| SISTRUM | • sistrum n. An ancient Egyptian musical instrument, to be shaken, consisting of a metal frame holding percussive metal beads. • 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. |
| ANESTRUM | • anestrum n. Synonym of anestrus. • ANESTRUM n. (Greek) a period of sexual inactivity between periods of oestrus, also ANESTRUS, ANOESTRUM, ANOESTRUS. |
| DIESTRUM | • diestrum n. (Biology) The interval between two periods of estrus. • DIESTRUM n. a period of sexual inactivity, also DIESTRUS. |
| HUMSTRUM | • humstrum n. An instrument out of tune or rudely constructed. • humstrum n. A hurdy-gurdy. • humstrum n. (Uncountable) Music badly played. |
| PLASTRUM | • plastrum n. Alternative form of plastron. • PLASTRUM n. a fencer's padded breast-shield; the underside of a turtle's shell, also PLASTRON. |
| ANOESTRUM | • anoestrum n. Synonym of anestrus. • ANOESTRUM n. (Greek) a period of sexual inactivity, also ANESTRUM. |
| CLAUSTRUM | • claustrum n. (Neuroanatomy) A thin, irregular sheet of grey matter underneath the inner part of the neocortex on… • CLAUSTRUM n. (Latin) a thin lamina of gray matter in each cerebral hemisphere of the brain of man. |
| COLOSTRUM | • colostrum n. (Medicine) A form of milk produced by the mammary glands in late pregnancy and the few days after giving… • colostrum n. A mixture of turpentine and egg yolk, formerly used as an emulsion. • COLOSTRUM n. (Latin) milk secreted for a few days after parturition, characterised by high protein and antibody content. |
| LIGUSTRUM | • ligustrum n. Any of several shrubs, of the genus Ligustrum, widely used for hedges; privet. • Ligustrum prop.n. A taxonomic genus within the family Oleaceae – the privets. • LIGUSTRUM n. a plant of a genus that comprises the privets. |
| EMPLASTRUM | • EMPLASTRUM n. a medicated plaster, also EMPLASTRON. |
| SEQUESTRUM | • sequestrum n. A fragment of bone or other dead tissue that has separated during necrosis. • SEQUESTRUM n. (Latin) a portion of dead bone which becomes separated from the sound portion, as in necrosis. |
| HIPPEASTRUM | • Hippeastrum prop.n. A taxonomic genus within the family Amaryllidaceae – certain South American flowers, sometimes called amaryllises. • HIPPEASTRUM n. any plant of the South American genus Hippeastrum, bulbous, with white or red flowers. |
| ORGANISTRUM | • organistrum n. (Music) Any early form of hurdy-gurdy. • ORGANISTRUM n. an early musical instrument resembling the hurdy-gurdy. |