Meaning of preinvasive in English:
preinvasive
Pronunciation /ˌpriːɪnˈveɪsɪv/ /ˌpriːɪnˈveɪzɪv/
adjective
Medicine
Designating or relating to a stage in the development of a cancer in which it has not yet become locally invasive.
Origin
1920s; earliest use found in The Lancet.