tumefaciens

== Latin == === Etymology === Present active participle of tumefaciō (“to cause to swell, tumefy”). === Participle === tumefaciēns (genitive tumefacientis); third-declension one-termination participle causing to swell, tumefying (figuratively) swelling, puffing or inflating with pride ==== Declension ==== Third-declension participle. 1When used purely as an adjective.