Origin of GLIRIDAE. New Latin, from Glir-, Glis, type genus + -idae. 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.rigin of GLIRIDAE. New Latin, from Glir-, Glis, type genus + -idae. 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.
knockout mouse(Noun) Any of several forms of mice that have been genetically engineered by inactivating specific genes. Knockout mouse. A knockout mouse is a genetically engineered mouse in which researchers have inactivated, or knocked out, an existing gene by replacing it or disrupting it with an artificial piece of DNA.
A knockout mouse (left) that is a model for obesity, compared with a normal mouse. There are several thousand different strains of knockout mice. Many mouse models are named after the gene that has been inactivated.n some instances, the gene may serve a different function in adults than in developing embryos. Knocking out a gene also may fail to produce an observable change in a mouse or may even produce different characteristics from those observed in humans in which the same gene is inactivated.