前ぜん膊はくぜんはくMeanings1nounforearmAnatomical term for the part of the arm between the elbow and the wrist. In everyday conversation, 前腕 (ぜんわん) is more common.前ぜん膊はくの骨ほねは橈骨とうこつと尺しゃっ骨こつである。The bones of the forearm are the radius and the ulna.