There are two denfinations.
1) A stout Japanese herb (Aralia cordata) the blanched young shoots of which are used especially as a vegetable and in salads.
2) A 133.35 mm (5.25) ISO cartridge optical disc which can store up to 30 GB of data.
(U ltra D ensity O ptical) An optical disc technology developed by Plasmon and acquired by Alliance Storage Technologies that is used for long-term data archiving. Where Magneto-Optic Stopped Designed to supersede magneto-optic (MO) disks in capacity, UDO's first blue laser 30GB drives offered a big storage jump over 9.1GB, the final format for MO drives. See blue laser, phase change disk, PDD and magneto-optic disk : a stout Japanese herb (Aralia cordata) the blanched young shoots of which are used especially as a vegetable and in salads. ADVERTISEMENT. Note that some information is displayed differently in the Unabridged. To access the complete Unabridged Dictionary, with an additional 300,000 words that aren't in our free dictionary, start a free trial. Definition of UDO. : a stout Japanese herb (Aralia cordata) the blanched young shoots of which are used especially as a vegetable and in salads. ADVERTISEMENT. Japanese. Note that some information is displayed differently in the Unabridged. To access the complete Unabridged Dictionary, with an additional 300,000 words that aren't in our free dictionary, start a free trial. Usage Discussion of KUDO. Some commentators hold that since kudos is a singular word it cannot be used as a plural and that the word kudo is impossible. But kudo does exist; it is simply one of the most recent words created by back-formation from another word misunderstood as a plural.  Overview [edit]. An Ultra Density Optical disc or UDO is a 133.35 mm (5.25) ISO cartridge optical disc which can store up to 30 GB of data. The second generation UDO2 media was introduced in April 2007 and has a capacity of up to 60 GBs.  Udo. Udo, born Pribignev, was an Obodrite leader in the early eleventh century. His name Udo, of Germanic origin, was probably given him at his Christian baptism, perhaps after his possible godfather, Lothair Udo I of Stade. His father, Mistiwoi, had abandoned Christianity. Since two contemporary Obodrite princes are recorded, Anadrag and Gneus, Udo's power could not have been that extensive. According to Adam of Bremen and Helmold following him, Udo as a male Christianus. He was assassinated in 1028 by a Saxon, allegedly for cruelty. Origin of UDO. Japanese. This word doesn't usually appear in our free dictionary, but the definition from our premium Unabridged Dictionary is offered here on a limited basis. Note that some information is displayed differently in the Unabridged. To access the complete Unabridged Dictionary, with an additional 300,000 words that aren't in our free dictionary, start a free trial. The name of balding german technicians, who know absolutely nothing about fire trucks, cable plant management, radios, or trains. Also prone to eating chocolate bars at 10am and soda at unreasonable hours. Man, I can't believe Udo. That guy knows nothing about firetrucks and drank all our Mountain Dew!.  disk drive, a computer device containing a disk that spins at high speeds that allows magnetic impulses to be written onto and read from the electromagnetic surface. Most computers contain a hard disk drive, a compact disk-read only memory (CD-ROM) drive, a CD-R, CD-RW and DVD, DVD-R or DVD-RW, and one or more diskette drives. 
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