intravenous

adj (medical 医) within a vein or veins 静脉内的: an intravenous injection, ie into the bloodstream 静脉注射.

intolerant, intolerantly, intonation, intone, intoxicant, intoxicate, intoxication, intra-, intra-uterine, intractability, intractable, intractably, intramural, intramuscular, intransigence, intransigent, intransigently, intransitive, intransitively, intrastate, intravenously, intrench, intrepid, intrepidity, intrepidly, intricacy, intricate, intricately, intrigue, intriguer, intriguing, intrinsic, intrinsically, intro, introduce, introduction, introductory, introspect, introspection, introspective,