WordNet
n. the collection and study of money (and coins in particular) [syn: numismatics, numismatology, coin collection]
Wikipedia
Coin collecting is the collecting of coins or other forms of minted legal tender.
Coins of interest to collectors often include those that circulated for only a brief time, coins with mint errors and especially beautiful or historically significant pieces. Coin collecting can be differentiated from numismatics, in that the latter is the systematic study of currency. Though closely related, the two disciplines are not necessarily the same. A numismatist may or may not be a coin collector, and vice versa.
A coin's grade is a main determinant of its value. For a tiered fee, a third party certification service like PCGS or NGC will grade, authenticate, attribute, and encapsulate most U.S. and foreign coins. Over 80 million coins have been certified by the four largest services.
Usage examples of "coin collecting".
He sold the drugstore, split the inheritance with Dick, continued to live at home, and devoted more and more of his time to his hobby of coin collecting.
He was a retired college professor, and coin collecting was his hobby.
When he was a teenager the rigid drills of schooling had made him think that mathematics was just felicity with a particular kind of minutiae, knowing things, a sort of high-grade coin collecting.
Bartleby's sold fine stationery, and also had a small section devoted to stamp and coin collecting.
Similarly, if coin collecting were outlawed tomorrow, the astronomer very likely wouldn't turn in his steel pennies and buffalo nickels.