| BDELLIUMS | • bdelliums n. Plural of bdellium. • BDELLIUM n. (Latin) a fragrant gum resin from trees of the genus Commiphora. |
| BERKELIUM | • berkelium n. A transuranic chemical element (symbol Bk) with an atomic number of 97. • BERKELIUM n. a radioactive, metallic element made artificially. |
| BERYLLIUM | • beryllium n. The chemical element (symbol Be) with an atomic number of 4; a soft silvery-white low density alkaline… • beryllium n. (Countable) An atom of this element. • BERYLLIUM n. a metallic element. |
| DENTALIUM | • dentalium n. Any of various tooth shells of the genus Dentalium. • Dentalium prop.n. A taxonomic genus within the family Dentaliidae – the dentalia, certain tusk shells. • DENTALIUM n. (Latin) any mollusc or shell of the genus Dentalium, of scaphopod molluscs whose shells resemble an elephant's tusk. |
| MAGNALIUM | • magnalium n. An alloy of 75% aluminium with about 25% magnesium. • MAGNALIUM n. an alloy of magnesium and aluminum. |
| NEBULIUMS | • NEBULIUM n. an element formerly assumed to explain certain lines in the spectra of gaseous nebulae, now known to be due to states of oxygen and nitrogen not possible under earthly conditions. |
| NOBELIUMS | • NOBELIUM n. a name given to transuranic element 102. |
| OLOLIUQUI | • ololiuqui n. Alternative form of ololiuhqui. • OLOLIUQUI n. a woody-stemmed Mexican vine of the morning glory family. |
| ORDALIUMS | • ORDALIUM n. (Latin) the process of resolving a disputed question by divination. |
| PSYLLIUMS | • psylliums n. Plural of psyllium. • PSYLLIUM n. (Greek) the seed of the fleawort. |
| REPTILIUM | • reptilium n. An enclosure in which reptiles are kept. • REPTILIUM n. a building for displaying reptiles. |
| SCHOLIUMS | • scholiums n. Plural of scholium. • SCHOLIUM n. (Greek) an explanatory marginal note. |
| SIMULIUMS | • SIMULIUM n. a small black bloodsucking fly. |
| THALLIUMS | • thalliums n. Plural of thallium. • THALLIUM n. a rare bluish-white metallic chemical element. |
| TRIFOLIUM | • trifolium n. (Botany) Any of the genus Trifolium of clovers and trefoils. • Trifolium prop.n. A taxonomic genus within the family Fabaceae – clovers or trefoils. • TRIFOLIUM n. (Latin) any leguminous plant of the large genus Trifolium, characterized by trifoliate leaves. |
| TRILLIUMS | • trilliums n. Plural of trillium. • TRILLIUM n. a three-leaved plant of the lily family. |