1.destructive2.devastating
1.explosive2.fig. shocking
1.real2.the nature of sth
1.(chemistry) activity2.active3.activated
1.symbolic2.emblem3.token
1.infectious; contagious2.infectiousness; transmissibility
1.spiritual nature2.spirituality3.intelligence (esp. in animals)
1.brave2.staunch3.unyielding
congenital; intrinsic; innate
1.neural2.mental3.neurological
1.sexless2.asexual (reproduction)
1.to feminize2.feminization
1.selective2.selectiveness3.selectivity
1.male and female2.both types (acid and alkaline, positive and negative etc)3.(chemistry) amphoteric
1.integrity2.completeness
strong; intense; spirited; virulent
1.impetuous person2.excitable person
1.you might as well (do it)2.simply3.just
1.hypersensitive2.allergic reaction3.anaphylaxis
1.to masculinize2.masculinization
1.to determine the nature (of sth)2.to determine the chemical composition (of a substance)3.qualitative
1.representativeness2.representative; typical