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297 Words That End With IUM

Part of Speech:
Word Definitions Synonyms
actinium (noun) a radioactive element of the actinide series; found in uranium ores Synonyms: Ac, atomic number 89
aecium (noun) fruiting body of some rust fungi bearing chains of aeciospores
alluvium (noun) clay or silt or gravel carried by rushing streams and deposited where the stream slows down Synonyms: alluvial deposit, alluvial sediment, alluvion
aluminium (noun) a silvery ductile metallic element found primarily in bauxite Synonyms: Al, aluminum, atomic number 13
americium (noun) a radioactive transuranic metallic element; discovered by bombarding uranium with helium atoms Synonyms: Am, atomic number 95
ammobium (noun) any plant of the genus Ammobium having yellow flowers and silvery foliage
ammonium (noun) the ion NH4 derived from ammonia; behaves in many respects like an alkali metal ion Synonyms: ammonium ion
androecium (noun) a male gametoecium
antheridium (noun) the male sex organ of spore-producing plants; produces antherozoids; equivalent to the anther in flowers
anthurium (noun) any of various tropical American plants cultivated for their showy foliage and flowers Synonyms: tail-flower, tailflower
apothecium (noun) a cuplike ascocarp in many lichens and ascomycetous fungi
aquarium (noun) a tank or pool or bowl filled with water for keeping live fish and underwater animals Synonyms: fish tank, marine museum
archaebacterium (noun) considered ancient life forms that evolved separately from bacteria and blue-green algae Synonyms: archaebacteria, archaeobacteria, archeobacteria
archegonium (noun) a female sex organ occurring in mosses, ferns, and most gymnosperms
archesporium (noun) primitive cell or group of cells from which a mother cell develops Synonyms: archespore
archipallium (noun) the olfactory cortex of the cerebrum Synonyms: paleocortex
armamentarium (noun) the collection of equipment and methods used in the practice of medicine
aspersorium (noun) the basin or other vessel that holds holy water in Roman Catholic Churches
(noun) a short-handled device with a globe containing a sponge; used for sprinkling holy water Synonyms: aspergill
atrium (noun) the central area in a building; open to the sky
(noun) any chamber that is connected to other chambers or passageways (especially one of the two upper chambers of the heart)
auditorium (noun) the area of a theater or concert hall where the audience sits
bacterium (noun) (microbiology) single-celled or noncellular spherical or spiral or rod-shaped organisms lacking chlorophyll that reproduce by fission; important as pathogens and for biochemical properties; taxonomy is difficult; often considered to be plants Synonyms: bacteria
barium (noun) a soft silvery metallic element of the alkali earth group; found in barite Synonyms: atomic number 56, Ba
basidium (noun) a small club-shaped structure typically bearing four basidiospores at the ends of minute projections; unique to basidiomycetes
bdellium (noun) aromatic gum resin; similar to myrrh
berkelium (noun) a radioactive transuranic element; discovered by bombarding americium with helium Synonyms: atomic number 97, Bk
beryllium (noun) a light strong brittle grey toxic bivalent metallic element Synonyms: atomic number 4, Be, glucinium
bimillennium (noun) a span of 2000 years Synonyms: bimillenary
(noun) the 2000th anniversary (or the celebration of it) Synonyms: bimillenary
bohrium (noun) a transuranic element with atomic number 107 Synonyms: atomic number 107, Bh, element 107
brachium (noun) (biology) a branching or armlike part of an animal
cadmium (noun) a soft bluish-white ductile malleable toxic bivalent metallic element; occurs in association with zinc ores Synonyms: atomic number 48, Cd
caesium (noun) a soft silver-white ductile metallic element (liquid at normal temperatures); the most electropositive and alkaline metal Synonyms: atomic number 55, cesium, Cs
caladium (noun) any plant of the genus Caladium cultivated for their ornamental foliage variously patterned in white or pink or red
calcium (noun) a white metallic element that burns with a brilliant light; the fifth most abundant element in the earth's crust; an important component of most plants and animals Synonyms: atomic number 20, Ca
californium (noun) a radioactive transuranic element; discovered by bombarding curium with alpha particles Synonyms: atomic number 98, Cf
cambium (noun) the inner layer of the periosteum
(noun) a formative one-cell layer of tissue between xylem and phloem in most vascular plants that is responsible for secondary growth
cerium (noun) a ductile grey metallic element of the lanthanide series; used in lighter flints; the most abundant of the rare-earth group Synonyms: atomic number 58, Ce
cesium (noun) a soft silver-white ductile metallic element (liquid at normal temperatures); the most electropositive and alkaline metal Synonyms: atomic number 55, caesium, Cs
chromium (noun) a hard brittle multivalent metallic element; resistant to corrosion and tarnishing Synonyms: atomic number 24, Cr
cilium (noun) a hairlike projection from the surface of a cell; provides locomotion in free-swimming unicellular organisms
(noun) any of the short curved hairs that grow from the edges of the eyelids Synonyms: eyelash, lash
cinerarium (noun) a niche for a funeral urn containing the ashes of the cremated dead Synonyms: columbarium
cleistothecium (noun) closed spore-bearing structure of some fungi (especially Aspergillaceae and Erysiphaceae) from which spores are released only by decay or disintegration Synonyms: cleistocarp
clostridium (noun) spindle-shaped bacterial cell especially one swollen at the center by an endospore Synonyms: clostridia
coccidium (noun) parasitic on the digestive epithelium of vertebrates and higher invertebrates Synonyms: eimeria
colloquium (noun) an address to an academic meeting or seminar
(noun) an academic meeting or seminar usually led by a different lecturer and on a different topic at each meeting
collyrium (noun) lotion consisting of a solution used as a cleanser for the eyes Synonyms: eye-lotion, eyewash
columbarium (noun) a sepulchral vault or other structure having recesses in the walls to receive cinerary urns
(noun) a niche for a funeral urn containing the ashes of the cremated dead Synonyms: cinerarium
(noun) a birdhouse for pigeons Synonyms: columbary, dovecote
columbium (noun) a former name for niobium
compendium (noun) a concise but comprehensive summary of a larger work
(noun) a publication containing a variety of works Synonyms: collection
condominium (noun) housing consisting of a complex of dwelling units (as an apartment house) in which each unit is individually owned
(noun) one of the dwelling units in a condominium Synonyms: condo
conidium (noun) an asexually produced fungal spore formed on a conidiophore Synonyms: conidiospore
consortium (noun) an association of companies for some definite purpose Synonyms: pool, syndicate
corium (noun) the deep vascular inner layer of the skin Synonyms: derma, dermis
corynebacterium (noun) any species of the genus Corynebacterium
cranium (noun) the part of the skull that encloses the brain Synonyms: braincase, brainpan
crematorium (noun) a furnace where a corpse can be burned and reduced to ashes Synonyms: cremation chamber, crematory
(noun) a mortuary where corpses are cremated Synonyms: crematory
criterium (noun) a bicycle race held on a short course (usually less than 5 km or 3 miles) Synonyms: crit
ctenidium (noun) comb-like respiratory structure serving as the gill of certain mollusks
curium (noun) a radioactive transuranic metallic element; produced by bombarding plutonium with helium nuclei Synonyms: atomic number 96, Cm
cymatium (noun) (architecture) a molding for a cornice; in profile it is shaped like an S (partly concave and partly convex) Synonyms: cyma
cymbidium (noun) any of various plants of the genus Cymbidium having narrow leaves and a long drooping cluster of numerous showy and variously colored boat-shaped flowers; extensively hybridized and cultivated as houseplants and important florists' flowers Synonyms: cymbid
darmstadtium (noun) a radioactive transuranic element, with atomic number 110 Synonyms: atomic number 110, Ds, element 110
decennium (noun) a period of 10 years Synonyms: decade, decennary
deliquium (noun) a spontaneous loss of consciousness caused by insufficient blood to the brain Synonyms: faint, swoon, syncope
delirium (noun) a usually brief state of excitement and mental confusion often accompanied by hallucinations
(noun) state of violent mental agitation Synonyms: craze, frenzy, fury, hysteria
delphinium (noun) any plant of the genus Delphinium having palmately divided leaves and showy spikes of variously colored spurred flowers; some contain extremely poisonous substances
dendrobium (noun) a plant of the genus Dendrobium having stems like cane and usually showy racemose flowers
deuterium (noun) an isotope of hydrogen which has one neutron (as opposed to zero neutrons in hydrogen) Synonyms: heavy hydrogen
diazonium (noun) the univalent cation R-N:N- (where R is an aromatic hydrocarbon); found in salts that are used in manufacturing azo dyes
dictostylium (noun) any slime mold of the genus Dictostylium
disequilibrium (noun) loss of equilibrium attributable to an unstable situation in which some forces outweigh others
domatium (noun) a part of a plant (e.g., a leaf) that has been modified to provide protection for insects or mites or fungi
dracontium (noun) any plant of the genus Dracontium; strongly malodorous tropical American plants usually with gigantic leaves
dubnium (noun) a transuranic element with atomic number 105 Synonyms: atomic number 105, Db, element 105, hahnium
dysprosium (noun) a trivalent metallic element of the rare earth group; forms compounds that are highly magnetic Synonyms: atomic number 66, Dy
effluvium (noun) a foul-smelling outflow or vapor (especially a gaseous waste)
einsteinium (noun) a radioactive transuranic element produced by bombarding plutonium with neutrons Synonyms: atomic number 99, E, Es
emporium (noun) a large retail store organized into departments offering a variety of merchandise; commonly part of a retail chain Synonyms: department store
emunctorium (noun) a white linen cloth which is used to wipe the chalice after each communicant partakes. Synonyms: purificator, purificatorium
encomium (noun) a formal expression of praise Synonyms: eulogy, paean, panegyric, pean
endocardium (noun) the membrane that lines the cavities of the heart and forms part of the heart valves
endocranium (noun) membrane lining the inside of the skull
endometrium (noun) (pregnancy) the mucous membrane that lines the uterus; thickens under hormonal control and (if pregnancy does not occur) is shed in menstruation; if pregnancy occurs it is shed along with the placenta at parturition
endoneurium (noun) delicate connective tissue around individual nerve fibers in nerve
endothelium (noun) an epithelium of mesoblastic origin; a thin layer of flattened cells that lines the inside of some body cavities
epicardium (noun) the innermost of the two layers of the pericardium Synonyms: visceral pericardium
epicranium (noun) the muscle and aponeurosis and skin covering the cranium
epigastrium (noun) the region lying on or over the stomach (just below the sternum)
epimythium (noun) a moral at the end of a story.
epithalamium (noun) an ode honoring a bride and bridegroom
epithelium (noun) membranous tissue covering internal organs and other internal surfaces of the body Synonyms: epithelial tissue
equilibrium (noun) a sensory system located in structures of the inner ear that registers the orientation of the head Synonyms: labyrinthine sense, sense of balance, sense of equilibrium, vestibular sense
(noun) a chemical reaction and its reverse proceed at equal rates Synonyms: chemical equilibrium
(noun) equality of distribution Synonyms: balance, counterbalance, equipoise
(noun) a stable situation in which forces cancel one another
erbium (noun) a trivalent metallic element of the rare earth group; occurs with yttrium Synonyms: atomic number 68, Er
eubacterium (noun) a large group of bacteria having rigid cell walls; motile types have flagella Synonyms: eubacteria, true bacteria
eulogium (noun) a formal expression of praise for someone who has died recently Synonyms: eulogy
euphonium (noun) a bass horn (brass wind instrument) that is the tenor of the tuba family
euphorbium (noun) an acrid brown gum resin now used mainly in veterinary medicine Synonyms: gum eurphorbium
europium (noun) a bivalent and trivalent metallic element of the rare earth group Synonyms: atomic number 63, Eu
eusporangium (noun) a sporangium that arises from a group of epidermal cells
exordium (noun) (rhetoric) the introductory section of an oration or discourse
fermium (noun) a radioactive transuranic metallic element produced by bombarding plutonium with neutrons Synonyms: atomic number 100, Fm

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