8-letter words that end in um
- coagulum — any coagulated mass; clot; curd
- cocoplum — a tropical shrub, Chrysobalanus icaco
- coliseum — a large building, such as a stadium or theatre, used for entertainments, sports, etc
- conarium — the pineal gland
- conidium — an asexual spore formed at the tip of a specialized hypha (conidiophore) in fungi such as Penicillium
- corallum — the skeleton of any zoophyte, esp that of a coral colony
- coremium — the spore-producing organ of certain fungi that consists of conidiophores
- coronium — a hypothetical element whose existence was proposed in the 19th century to explain a green line seen in the solar coronal spectrum; this is now known to be highly-ionized iron and nickel
- corundum — a white, grey, blue, green, red, yellow, or brown mineral, found in metamorphosed shales and limestones, in veins, and in some igneous rocks. It is used as an abrasive and as gemstone; the red variety is ruby, the blue is sapphire. Composition: aluminium oxide. Formula: Al2O3. Crystal structure: hexagonal (rhombohedral)
- crotalum — a type of castanet, often used in religious dances in ancient Greece
- cyathium — a form of inflorescence of the type found on the poinsettia
- cymatium — the top moulding of a classical cornice or entablature
- decretum — the name given to various collections of canon law, esp that made by the monk Gratian in the 12th century, which forms the first part of the Corpus Juris Canonici
- dedendum — (on a gear or rack) the radial distance between the pitch circle or line and the root circle or line. Compare addendum (def 3a).
- delirium — If someone is suffering from delirium, they are not able to think or speak in a sensible and reasonable way because they are very ill and have a fever.
- delubrum — a shrine or sanctuary
- didymium — a mixture of the metallic rare earths neodymium and praseodymium, once thought to be an element
- diluvium — a coarse surficial deposit formerly attributed to a general deluge but now regarded as glacial drift.
- disodium — (chemistry, in combination) two atoms of sodium in a compound.
- domatium — a plant cavity inhabited by commensal insects or mites or, occasionally, microorganisms
- dominium — complete power to use, to enjoy, and to dispose of property at will.
- duodenum — the first portion of the small intestine, from the stomach to the jejunum.
- eboracum — ancient name of York, England.
- electrum — A natural or artificial alloy of gold with at least 20 percent silver, used for jewelry, especially in ancient times.
- emporium — A large retail store selling a wide variety of goods.
- encomium — A speech or piece of writing that praises someone or something highly.
- eryngium — (botany) Any of the genus Eryngium of umbelliferous plants resembling thistles.
- eulogium — eulogy
- europium — The chemical element of atomic number 63, a soft silvery-white metal of the lanthanide series. Europium oxide is used with yttrium oxide as a red phosphor in color television screens.
- exemplum — An example or model, especially a moralizing or illustrative story.
- exordium — The beginning or introductory part, especially of a discourse or treatise.
- extremum — The maximum or minimum value of a function.
- factotum — a person, as a handyman or servant, employed to do all kinds of work around the house.
- fascinum — An ivory phallus used in certain ancient erotic rites.
- francium — a radioactive element of the alkali metal group. Symbol: Fr; atomic number: 87.
- freemium — a sales strategy, especially on the Internet, in which the basic product or service is free, but customers are charged for additional features and content.
- frenulum — Anatomy, Zoology. a small frenum.
- fumarium — A smoke chamber used in Ancient Rome to enhance the flavor of wine.
- furculum — furcula.
- fusarium — any fungus of the genus Fusarium, occurring primarily in temperate regions and causing a variety of diseases in plants and animals, producing in humans a loss of fingernails and sometimes blindness.
- galbanum — a gum resin with a peculiar, strong odor, obtained from certain Asian plants of the genus Ferula, used in incense and formerly in medicine.
- geranium — any of numerous plants of the genus Geranium, which comprises the crane's-bills.
- glucinum — (formerly) beryllium. Symbol: Gl.
- glum bum — a pessimistic person
- gluonium — glueball.
- gonidium — (in algae) any one-celled asexual reproductive body, as a tetraspore or zoospore.
- graphium — a writing stylus
- grey gum — any of various eucalyptus trees of New South Wales having dull grey bark, esp Eucalyptus punctata
- guaiacum — any of several tropical American trees or shrubs belonging to the genus Guaiacum of the caltrop family; lignum vitae.
- guar gum — a plant, Cyamopsis tetragonolobus, of the legume family, grown as a forage crop and for its seeds, which produce a gum (guar gum) used as a thickening agent and stabilizer in foods and pharmaceuticals and as sizing for paper and cloth.