経口 けいこう Meanings の-adjective taken by mouth; passed into the body via the mouth; oral Kanji 経 pass. Read as ケイ. 口 mouth. Read as コウ. Words containing 経口 経口補水液 (けいこうほすいえき) oral rehydration solution 経口避妊薬 (けいこうひにんやく) oral contraceptives 経口薬 (けいこうやく) oral medicine And 5 more. Jinuma: Japanese Dictionary · Word lists