Dictionary

germ line

noun

Definition of GERM LINE

:  the cellular lineage of a sexually reproducing organism from which eggs and sperm are derived; also :  the genetic material contained in this cellular lineage which can be passed to the next generation

First Known Use of GERM LINE

1925

germ line

noun    (Medical Dictionary)

Medical Definition of GERM LINE

:  the cellular lineage especially of a sexually reproducing animal from which eggs and sperm are derived and in which a cell undergoing mutation can be passed to the next generation <the difference between gene therapy of somatic cells and modification of the germ line—David Baltimore>

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