- The definition of invasive is someone or something that intrudes or that spreads itself throughout.
- Cancer that has spread throughout your body is an example of invasive cancer.
- A person who is constantly showing up at your house and butting into your life is an example of an invasive person.
- of or having to do with invasion or an invasion: an invasive military force, invasive weeds
- tending to spread into healthy tissue: an invasive tumor
- penetrating into the body: an invasive diagnostic instrument
- Of, engaging in, or given to armed aggression: an invasive military force.
- a. Of or relating to a disease or condition that has a tendency to spread, especially into healthy tissue: an invasive carcinoma.b. Of or relating to a medical procedure in which a part of the body is entered, as by puncture or incision.
- Tending to spread widely in a habitat or ecosystem. Used especially of nonnative species: an invasive grass.
- Tending to intrude or encroach, as upon privacy.
An invasive species or organism.
Origin of invasiveMiddle English, from Old French invasif, from Medieval Latin invāsīvus, from Latin invāsus, past participle of invādere, to invade; see invade.
(comparative more invasive, superlative most invasive)
- That invades a foreign country using military force.
- (of a plant or animal) That grows in environments which do not harbor natural enemes, often to the detriment of native species or of food or garden flora and fauna.
- (medicine) (of a carcinoma etc) That invades healthy tissue; (of a procedure) in which part of the body is entered
- Intrusive on one's privacy.
- An invasive organism, as, a plant or animal.