Webster Dictionary(5.00 / 1 vote)Rate this definition: Usual(noun) such as is in common use; such as occurs in ordinary practice, or in the ordinary course of events; customary; ordinary; habitual; common.
Friday, 14 February, 2003, 20:28 GMT. Dolly the sheep clone dies young. Dolly the Sheep was born in 1996. Dolly the sheep, who became famous as the first mammal to be cloned from an adult cell, has died. The news was confirmed on Friday by the Roslin Institute, the Scottish research centre which created her.
Dolly was remarkable in being the first mammal to be cloned from an adult cell. This was a major scientific achievement as it demonstrated that the DNA from adult cells, despite having specialised as one particular type of cell, can be used to create an entire organism.