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Definitions of dynamic random access memory:

A type of RAM that maintains its content only as long as the data stored in the device is refreshed at regular intervals. The repetitive row by column refresh access cycles are usually performed by a peripheral called a DRAM controller. If this isn't done every few milliseconds, some or all of the data stored in the memory can be lost. DRAM is much cheaper per byte than SRAM because it requires just one transistor per bit rather than four to six; however, it has longer access times. ...
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Computer memory that stores information to be used by the CPU. Dynamic memory can only store data for a short period of time, at which point it needs to be refreshed with a new pulse of electric charge, or the data is erased from the memory. Information is not stored in DRAM when the system is powered down.
www.upgradememory.com/Computer_Memory_Glossary_W10C15775.cfm
a type of semiconductor memory where data may be accessed at random and data must be continuously refreshed. DRAM's will only hold data for a few milliseconds so the data must be read and rewritten every millisecond or so.
www.icknowledge.com/glossary/d.html
is one type of chip used in Random Access Memory. It stores information as an electrical charge. Because this charge dissipates over time, the computing device must periodically run a “refresh cycle” on the chips to recharge them—hence “dynamic”. As it is a type of RAM, it will lose its information when the device into which it is installed is turned off. Typically, the time required to access information with a DRAM scheme is greater than with SRAM. ...
www.zebra.com/id/zebra/na/en/index/resource_library/glossary/bar_code_terminology.parsys.0001.viewall.Glossary.html
random access memory which needs its contents to be refreshed on each memory cycle (compare static random access memory).
www.gbc.t-online.hu/english/bszotare2.htm
The most common form of system memory packaging. DRAM can hold a charge (that is, data) for only a short period of time. Therefore, to retain the data it must be refreshed periodically. If the cell is not refreshed, the data is lost.
www.webcabcomponents.com/hardware/glossary/atoe.shtml
This memory module type is the most commonly used. DRAM holds data only for a short period of time before having to refresh itself.
www.cbv.ns.ca/sstudies/jrhigh/dictionary/d.htm
DRAM is a type of random access memory that stores each bit of data in a separate capacitor.The number of electrons stored in the capacitor determines whether the bit is considered 1 or 0.As the capacitor leaks electrons, the information gets lost eventually, unless the charge is refreshed periodically. Because it must be refreshed periodically, it is a dynamic memory as opposed to SRAM and other static memory. ...
en.wikipedia.org/wiki/Dynamic_random_access_memory

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