apicalKK [ˋæpɪkəl] /ˈæpɪkəl/形容詞1頂端的、尖端的生物學The apical bud produces a hormone that suppresses side branches.頂端的芽會分泌一種抑制側枝生長的荷爾蒙。2根尖的、尖部的醫學The X-ray revealed an infection around the apical area of the tooth.X光顯示牙齒根尖部位有感染。