11-letter words that end in um
- duces tecum — subpoena duces tecum.
- edrophonium — a substance, C 10 H 16 BrNO, used to reverse certain muscle-relaxing agents, such as tubocurarine, in surgical procedures: also used in the diagnosis of myasthenia gravis.
- einsteinium — The chemical element of atomic number 99, a radioactive metal of the actinide series. Einsteinium does not occur naturally and was discovered in 1953 in debris from the first hydrogen bomb explosion.
- endocardium — The thin, smooth membrane that lines the inside of the chambers of the heart and forms the surface of the valves.
- endocranium — (anatomy) The layer between the dura mater and the skull.
- endometrium — The mucous membrane lining the uterus, which thickens during the menstrual cycle in preparation for possible implantation of an embryo.
- endoneurium — the delicate connective tissue surrounding nerve fibres within a bundle
- endothecium — (biology) The tissue found in the walls of anthers, and in moss capsules.
- endothelium — The tissue that forms a single layer of cells lining various organs and cavities of the body, especially the blood vessels, heart, and lymphatic vessels. It is formed from the embryonic mesoderm.
- epigastrium — The part of the upper abdomen immediately over the stomach.
- equilibrium — A state in which opposing forces or influences are balanced.
- erythronium — A plant of a genus that includes dogtooth violet.
- eubacterium — A bacterium of a large group typically having simple cells with rigid cell walls and often flagella for movement. The group comprises the “ true ” bacteria and cyanobacteria, as distinct from archaebacteria.
- excrementum — an item of waste material or rubbish
- explanandum — That which is to be explained.
- fair dinkum — dinkum.
- favellidium — (in certain red algae) a cystocarp wholly or partly immersed in a frond.
- ferrocerium — an alloy of 65 percent misch metal and 35 percent iron, used in flints for cigarette lighters.
- flooded gum — any of various eucalyptus trees of Australia, esp Eucalyptus saligna (the Sydney blue gum), that grow in damp soil
- florilegium — a collection of literary pieces; anthology.
- formicarium — formicary.
- frigidarium — (in an ancient Roman bath) a room having a bath of unheated water.
- gametangium — an organ or body bearing gametes, as in mosses and liverworts.
- genu valgum — knock-knee.
- ground plum — a prostrate milk vetch, Astragalus crassicarpus, of the legume family, growing in the prairie regions of North America.
- gymnodinium — any marine or freshwater dinoflagellate of the genus Gymnodinium, certain species of which cause red tide.
- gynostegium — a specialized caplike mass of tissue covering a gynoecium.
- gynostemium — the united stamens and pistil of an orchid.
- hard dinkum — hard work; a difficult task.
- helichrysum — any of the numerous composite plants of the genus Helichrysum, having alternate leaves and solitary or clustered flower heads, including the strawflower.
- hemicyclium — a sundial in the form of a concave quarter sphere having a rodlike gnomon lying within one radius and marked on its surface with arcs that lie in the same plane as the gnomon.
- herculaneum — an ancient city in SW Italy, on the Bay of Naples: buried along with Pompeii by the eruption of Mount Vesuvius in a.d. 79; partially excavated.
- hesperidium — the fruit of a citrus plant, as an orange.
- hippeastrum — any plant of the South American amaryllidaceous genus Hippeastrum: cultivated for their large funnel-shaped typically red flowers
- honourarium — Nonstandard spelling of honorarium.
- hormogonium — a portion of filament in blue-green algae that becomes detached and reproduces by cell division.
- hydrargyrum — mercury.
- hydroxonium — (chemistry) The cation obtained by reacting a proton with water - H3O+; hydronium.
- hyphopodium — (in a fungus) a specialized hyphal branch, composed of one or two usually lobed cells, serving for attachment and for the absorption of food.
- hyponychium — (anatomy) The thickened epithelium beneath a nail or claw.
- hypothecium — the layer of hyphal tissue directly beneath the hymenium of an apothecium.
- in a vacuum — If something is done in a vacuum, it is not affected by any outside influences or information.
- in aeternum — forever.
- incunabulum — A book, single sheet, or image that was printed — not handwritten — before the year 1501 in Europe.
- infraphylum — (taxonomy) A taxon below subphylum and above superclass.
- insectarium — a place in which a collection of living insects is kept, as in a zoo.
- intermedium — (in tetrapods) a carpal in the center of the wrist joint, or a tarsal in the center of the ankle joint.
- interregnum — an interval of time between the close of a sovereign's reign and the accession of his or her normal or legitimate successor.
- intervallum — an interval of time
- intrapartum — During parturition (childbirth).