noun
trinerve; trinerbate venation
Botanical term for a leaf with three main veins arising from the base. Used in technical descriptions.
この植物の葉は三行脈を示す。
The leaves of this plant exhibit trinerve venation.
Compound of 三 (three) + 行 (line/row) + 脈 (vein), referring to the three main veins in a leaf.