tertiary   (Sound)

The tertiary has 2 Senses.

• tertiary, tertiary period
• 第三紀
• from 63 million to 2 million years ago
• 6千3百万年前から2百万年前まで

• tertiary, third, 3rd
• 第三の
• coming next after the second and just before the fourth in position
• 2番目の直後で、4番目の直前の位置に来るさま