(n.) = avocado ; alligator pear. Ex: The avocado probably originated in southern Mexico but was cultivated from the Rio Grande to central Peru before the arrival of Europeans. Ex: One of the more interesting facts about alligator pears is that they will not fully ripen while still on the tree. ---- * aceite de aguacate = avocado oil. (n.) = avocado tree. Ex: It helps to have several avocado trees growing together to aid with pollination.