n.massive herbivorous mammals having tusks and a long trunk
同义词：proboscidean
英汉双解大词典
proboscidean(alsoproboscidian)
1.
ADJ（形容词）
of, relating to, or belonging to the Proboscidea, an order of massive herbivorous placental mammals having tusks and a long trunk: contains the elephants 长鼻类的