12-letter words that end in um
- ad arbitrium — at pleasure; at will.
- ad infinitum — If something happens ad infinitum, it is repeated again and again in the same way.
- aldebaranium — (chemistry, obsolete) A rejected name for ytterbium.
- amphithecium — the outer layer of cells of the sporophyte of mosses and liverworts that develops into the outer parts of the spore-bearing capsule
- androclinium — clinandrium.
- antebrachium — (anatomy) The forearm.
- antibrachium — (anatomy) alternative spelling of antebrachium.
- appressorium — a flattened hypha of a parasitic fungus that penetrates the host tissues
- arc spectrum — a spectrum formed from the light produced by an electric arc, characteristic of the gas or vapor through which the arc passes.
- archesporium — archespore.
- archipallium — (anatomy) The oldest region of the brain's pallium, often considered contiguous with the olfactory cortex, but varying among species. In humans, the archipallium makes up the hippocampus.
- at a premium — If something is at a premium, it is wanted or needed, but is difficult to get or achieve.
- atmospherium — an optical system used to simulate images of atmospheric phenomena, as cloud formations, storms, and day and night, on the inside of a dome.
- baba au rhum — a light cake raised with yeast, containing raisins and dried fruits and soaked in a rum syrup
- bimillennium — a period of two thousand years
- calceamentum — (in ancient Rome) a sandal, boot, shoe, or other type of footwear
- chlorophytum — any plant of the genus Chlorophytum, esp C. elatum variegatum, grown as a pot plant for its long narrow leaves with a light central stripe, and characterized by the production of offsets at the end of long scapes: family Liliaceae
- cladosporium — any of the species of fungi in the genus Cladosporium
- clerodendrum — any of numerous tropical trees or shrubs of the genus Clerodendrum, having clusters of variously colored flowers.
- cork cambium — a layer of meristematic cells in the cortex of the stems and roots of woody plants, the outside of which gives rise to cork cells and the inside to secondary cortical cells (phelloderm)
- crassamentum — a blood clot
- cuprammonium — an ion of copper oxide used (in solution) in the manufacture of rayon and other man-made fibres
- custos morum — a custodian or guardian of morals; censor.
- darmstadtium — a synthetic radioactive element produced in small quantities by cold fusion in a linear accelerator. Symbol: Ds; atomic no: 110
- deinotherium — any member of the genus Deinotherium, consisting of mammals resembling elephants that existed during the Miocene, Pliocene, and Pleistocene epochs
- diverticulum — a blind, tubular sac or process branching off from a canal or cavity, especially an abnormal, saclike herniation of the mucosal layer through the muscular wall of the colon.
- dolphinarium — An aquarium in which dolphins are kept and trained for public entertainment.
- double album — a commercial recording sold on two CDs or LPs
- epithalamium — A song or poem celebrating a marriage.
- etymologicum — an etymological dictionary
- family album — photos of a family
- ferroniobium — An important alloy of iron and niobium.
- gubernaculum — a part or organ that directs the movement or course of another part.
- happy medium — a course of action or condition that is between two extremes: Our climate is a happy medium between hot and cold.
- harum-scarum — reckless; rash; irresponsible: He had a harum-scarum youth.
- helianthemum — (botany) Any of the genus Helianthemum of rockroses.
- hibernaculum — a protective case or covering, especially for winter, as of an animal or a plant bud.
- hologonidium — soredium.
- hypogastrium — the lower and median part of the abdomen.
- immune serum — a serum containing naturally or artificially produced antibodies to a given antigen, obtained from human or animal sources.
- in perpetuum — for ever
- infundibulum — a funnel-shaped organ or part.
- inhalatorium — a room or building in which vapours are breathed in
- interstitium — (medicine) An interstitial space within a tissue or organ.
- ivy geranium — a trailing geranium, Pelargonium peltatum, of southern Africa, having a fleshy stem that becomes woody with age, glossy, ivy-shaped leaves, and clusters of flowers ranging from white to deep rose in color.
- kurchatovium — (chemistry) A rejected name for rutherfordium.
- latus rectum — the chord perpendicular to the principal axis and passing through a focus of an ellipse, parabola, or hyperbola.
- leontopodium — any plant of the Eurasian alpine genus Leontopodium, esp L. alpinum
- leptospermum — any of various shrubs or trees of the genus Leptospermum, of the myrtle family, native to Australia and adjacent areas and often cultivated as ornamentals in milder climates.
- lithospermum — any annual or perennial herbs and small shrubs of the genus lithospermum, of the borage family, native to Europe, N America, and northern Asia, and having white, blue, or yellow flowers
On this page, we collect all 12-letter words ending in UM. It’s easy to find right word with a certain length. It is the easiest way to find 12-letter word that ends in UM to use in Scrabble or Crossword puzzles.