avocado

Concise Oxford English Dictionary © 2008 Oxford University Press:
avocado /ˌavəˈkɑːdəʊ/

▶noun (pl. avocados)

• 1 a pear-shaped fruit with a tough skin, smooth oily edible flesh, and a large stone.

• 2 the tropical evergreen tree which bears avocados. [Persea americana.]

• 3 a light green colour like that of an avocado's flesh.

– origin C17: from Sp., alt. of aguacate, from Nahuatl ahuacatl.