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occur
Searching in Crosswords ...
The answer OCCUR has 381 possible clue(s) in existing crosswords.
Searching in Word Games ...
The word OCCUR is VALID in some board games. Check OCCUR in word games in Scrabble, Words With Friends, see scores, anagrams etc.
Searching in Dictionaries ...
Definitions of occur in various dictionaries:
verb - come to pass
verb - come to one's mind
verb - to be found to exist
more
Word Research / Anagrams and more ...
Keep reading for additional results and analysis below.
| Possible Dictionary Clues |
|---|
| happen take place. |
| To take place come about. See Synonyms at happen. |
| To be found to exist or appear: Copper deposits occur in the region. |
| To come to mind: The idea never occurred to me. |
| to be found to exist |
| come to one's mind suggest itself |
| come to pass |
| (especially of accidents and other unexpected events) to happen: |
| to exist or be present in, among, etc.: |
| (esp. of unexpected events) to happen: |
| Occur description |
|---|
| Thorium is found in small amounts in most rocks and soils. Soil commonly contains an average of around 6 parts per million (ppm) of thorium. Thorium occurs in several minerals including thorite (ThSiO4), thorianite (ThO2 + UO2) and monazite. Thorianite is a rare mineral and may contain up to about 12% thorium oxide. Monazite contains 2.5% thorium, allanite has 0.1 to 2% thorium and zircon can have up to 0.4% thorium. Thorium-containing minerals occur on all continents. Thorium is several times more abundant in Earth's crust than all isotopes of uranium combined and thorium-232 is several hundred times more abundant than uranium-235.Thorium concentrations near the surface of the earth can be mapped using gamma spectroscopy. The same technique has been used to detect concentrations on the surface of the Moon; the near side has high abundances of relatively thorium-rich KREEP, while the Compton–Belkovich Thorium Anomaly was detected on the far side. Martian thorium has also been mapped by 2001 Mars Odyssey.232Th decays very slowly (its half-life is comparable to the age of the universe) but other thorium isotopes occur in the thorium and uranium decay chains. Most of these are short-lived and hence much more radioactive than 232Th, though on a mass basis they are negligible. |
| Related Answers |
|---|
| APE |
| ARISE |
| BEFALL |
| BEGIN |
| BETIDE |
| COMEABOUT |
| COMEINTOBEING |
| COMETOPASS |
| COMEUP |
| CROPUP |