| ERBIUMS | • erbiums n. Plural of erbium. • ERBIUM n. (Swedish) a metallic element. |
| CAMBIUMS | • cambiums n. Plural of cambium. • CAMBIUM n. a layer of plant tissue. |
| NIOBIUMS | • niobiums n. Plural of niobium. • NIOBIUM n. a metallic element, formerly called columbium. |
| STIBIUMS | • STIBIUM n. (Latin) antimony. |
| TERBIUMS | • TERBIUM n. (Swedish) a metallic element. |
| UNUNBIUMS | • UNUNBIUM n. a synthetic chemical element. |
| COLUMBIUMS | • columbiums n. Plural of columbium. • COLUMBIUM n. a rare element of the vanadium group, now more commonly called niobium. |
| EPILOBIUMS | • epilobiums n. Plural of epilobium. • EPILOBIUM n. a genus of plants that includes willowherb. |
| EXCAMBIUMS | • EXCAMBIUM n. in Scots law, exchange of lands, also EXCAMBION. |
| NELUMBIUMS | • nelumbiums n. Plural of nelumbium. • NELUMBIUM n. (Tamil) a plant of the Nelumbium genus of waterlilies that includes the sacred lotus, also NELUMBO. |
| YTTERBIUMS | • ytterbiums n. Plural of ytterbium. • YTTERBIUM n. (Swedish) a rare element of the boron group. |
| DENDROBIUMS | • dendrobiums n. Plural of dendrobium. • DENDROBIUM n. a kind of epiphytic orchid. |
| EUPHORBIUMS | • EUPHORBIUM n. the resinous gum of certain succulent plants of the genus Euphorbia, formerly used as an emetic and purgative. |
| PROCAMBIUMS | • PROCAMBIUM n. the young tissue of a fibrovascular bundle before its component cells have begun to be differentiated. |