Entry 2 senses Webster, 1913

Intravenous

/ĭnˌ-trəv-ēn'-əs/ · In·tra·ve·nous · IPA /ɪntɹəˈviːnəs/

01 a. Within the veins.

1.
Within the veins.
2.
Administered by injection into a vein; as, an intravenous antibiotic infusion.