> as lemmas

1959 P. R. White in J. Brachet & A. E. Mirsky Cell I. vii. 310 A major part of this environment [sc. of a cell in culture] is the fluid nutrient which is to bathe the cell, provide its nutriment and..serve as its protector against change in physical state, temperature, light, acidity, against bioinvaders, etc.

1995 Washington Post 9 July a9 (heading) Bio-Invaders pose ecological risk; environmental group cites rapid global spread of ‘exotic’ viruses, pests.

2000 J. Gates Democracy at Risk Introd. p. xxiv A virulent bioinvader, kudzu has taken over millions of acres in the American South, overwhelming the native habitat as it smothers flowering plants and shrubs, driving them to extinction.