noun
secondary growth
Botanical term referring to the increase in thickness of stems and roots due to the activity of lateral meristems. Compare with 二次成長.
See also: 二次成長
樹木の肥大成長は形成層の活動によって起こる。
Secondary growth in trees occurs through the activity of the cambium.
Synonymous; 肥大成長 is more descriptive of the thickening process, while 二次成長 is the standard technical term.
Compound of 肥大 (ひだい, 'enlargement, thickening') and 成長 (せいちょう, 'growth').