頂ちょう芽がちょうがMeanings1nounterminal bud; apical budbotanyBotanical term for the bud at the tip of a stem or branch, responsible for primary growth.頂ちょう芽がを摘つむと、側そく芽がの成せい長ちょうが促うながされる。Pinching off the terminal bud encourages the growth of lateral buds.