Definitions
American Heritage® Dictionary of the English Language, Fourth Edition
- n. A bright, silvery rare-earth element obtained commercially from monazite, having an x-ray emitting isotope that is used in small portable medical x-ray units. Atomic number 69; atomic weight 168.934; melting point 1,545°C; boiling point 1,727°C; specific gravity 9.3; valence 2, 3. See Table at element.
Century Dictionary and Cyclopedia
- n. The name was given in 1879, by Cleve, to a supposed new element present in the compounds of Mosandu' s erbium extracted from gadolinite. The evidence of its existence was found in an examination of the absorption-spectra of products of the fractionation of erbium salt solutions, but it is very doubtful whether the separation is complete and whether thulium is to be considered as a distinct and single element.
- n. A supposed element found in the mineral gadolinite. Its properties have not been ascertained, and its existence is doubtful.
Wiktionary
- n. a metallic chemical element (symbol Tm) with an atomic number of 69.
GNU Webster's 1913
- n. (Chem.) A rare metallic element of uncertain properties and identity, said to have been found in the mineral gadolinite.
WordNet 3.0
- n. a soft silvery metallic element of the rare earth group; isotope 170 emits X-rays and is used in small portable X-ray machines; it occurs in monazite and apatite and xenotime
Etymologies
- Thule (as a poetic way to say Scandinavia) + -ium (Wiktionary)
- After Thule 1. (American Heritage® Dictionary of the English Language, Fourth Edition)
Examples
“China accounts for 95 percent of global production and about 60 percent of consumption of rare metals, including dysprosium, terbium, thulium, lutetium and yttrium, according to the U.S.”
“Now Appearing: The mysterious element thulium skip to main”
“Rare-earth elements include the relatively common cerium, used in pollution-control equipment, and terbium, used in energy efficient light bulbs, as well as the truly rare thulium, which has applications in x-ray devices.”
The Wall Street Journal: China Denies Halting Rare-Earth Exports to Japan
“Words like yttrium, holmium, lanthanum, and thulium don't exactly roll off the tongue.”
“SCARLET argon dysprosium erbium holmium lutecium manganese thulium ytterbium”
“Professor of Chemistry in Uppsala, and the discoverer of the elements thulium and holmium.”
“Of the rare-earth metals many - yttrium, terbium, erbium, ytterbium, scandium, thulium, holmium - have been given names that show their origin in various Swedish localities.”
“Swedish chemist and geologist who discovered the elements holmium and thulium.”
“China accounts for 95 per cent of global production and about 60 per cent of consumption of rare metals, including dysprosium, terbium, thulium, lutetium and yttrium, according to the US Geological Survey.”
“Minerals like calcium, zinc, copper, manganese iron, terbium, thulium and neodymium will help in the proper functioning of our metabolism.”
Lists
These user-created lists contain the word ‘thulium’.
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Interesting words
A list of words that are odd or words that I have looked up.
concupiscence, brize, scree, scoria, forestaff, spanaemia, valetudinarianism, distasture, pyrethrum, laudanum, gentian, bicameral and 11184 more...
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Chemical Elements
A list of chemical elements
hydrogen, helium, lithium, beryllium, boron, carbon, nitrogen, oxygen, fluorine, neon, sodium, magnesium and 106 more...
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rays & x-rays
raised rays
cow-nosed ray, x-ray, roentgenogram, radiogram, sunray, tomograph, whipparee, oxeye, thulium, raster, moonbeam, robinia and 86 more...
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lasers
words associated with LASERS.
( open list, randomness )
NOTE: i'd like to keep the list specific to the LASER itself (Any LASER), and leave out applied sciences..
sp...electromagnetism, light, wavelength, phase, frequency, polarization, emission, optical, spectroscopy, lase, crystal, projection and 61 more...
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The Elements
hydrogen, helium, lithium, beryllium, boron, carbon, nitrogen, oxygen, fluorine, neon, sodium, magnesium and 99 more...
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Just 'cause I like 'em, T
torquate, thalassocracy, toothsome, travois, tempestuous, tone, tincture, tripwire, tether, trill, tenacious, travesty and 355 more...
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elements
sulfur, plutonium, manganese, magnesium, cesium, actinium, beryllium, bismuth, boron, plumbum, potassium, thulium and 1 more...
Tweets
Looking for tweets for thulium.
oroboros Tm Nov 30, 2007