| ALUMINIUMS | • aluminiums n. Plural of aluminium. • ALUMINIUM n. a light silvery malleable and ductile metallic element, also ALUMINUM, ALUMIUM. |
| AMBULACRUM | • ambulacrum n. (Of an echinoderm) A row of pores for the protrusion of appendages such as tube feet. • AMBULACRUM n. a radial band in the shell of an echinoderm, bearing rows of pores through which the tube-feet protrude. |
| COLUMBIUMS | • columbiums n. Plural of columbium. • COLUMBIUM n. a rare element of the vanadium group, now more commonly called niobium. |
| COMPLUVIUM | • compluvium n. (Architecture) A space left unroofed over the court of a dwelling in Ancient Rome, through which the… • COMPLUVIUM n. (Latin) a space left unroofed over the court of a Roman dwelling, through which the rain fell into the impluvium or cistern. |
| CUMULIFORM | • cumuliform adj. Having the shape of a cumulus cloud. • CUMULIFORM adj. shaped like a heap, esp. of a cloud. |
| MAUSOLEUMS | • mausoleums n. Plural of mausoleum. • MAUSOLEUM n. (Latin) a large, stately tomb. |
| MUTUALISMS | • mutualisms n. Plural of mutualism. • MUTUALISM n. a belief in the mutual dependence of society and the individual. |
| NELUMBIUMS | • nelumbiums n. Plural of nelumbium. • NELUMBIUM n. (Tamil) a plant of the Nelumbium genus of waterlilies that includes the sacred lotus, also NELUMBO. |
| NUMMULATED | • nummulated adj. Resembling coins. • NUMMULATED adj. coin-shaped. |
| NUMMULINES | • nummulines n. Plural of nummuline. • NUMMULINE n. any of large fossil protozoans. |
| NUMMULITES | • nummulites n. Plural of nummulite. • Nummulites prop.n. A taxonomic genus within the family Nummulitidae. • NUMMULITE n. a fossil of the genus Nummulites and allied genera. |
| NUMMULITIC | • nummulitic adj. (Geology) Pertaining to or consisting of nummulites, especially as designating a type of Eocene limestone formation. • NUMMULITIC adj. of, like, composed of, containing, nummulites; as, nummulitic beds. |
| SIMULACRUM | • simulacrum n. An image or representation. • simulacrum n. A faint trace or semblance. • SIMULACRUM n. (Latin) an image, a semblance, also SIMULACRE. |
| STUMBLEBUM | • stumblebum n. A blundering or awkward person. • stumblebum n. An inept prizefighter. • stumblebum n. (Slang) A homeless person. |
| ULTIMATUMS | • ultimatums n. Plural of ultimatum. • ULTIMATUM n. (Latin) a last offer, or demand. |
| UMBRACULUM | • umbraculum n. (Botany) Any umbrella-shaped appendage, such as the cap borne on the seta of Marchantia. • UMBRACULUM n. (Latin) an umbrella or umbrella-like structure. |