a. A cultivated deciduous tree (Malus domestica or M. pumila) in the rose family, native to Eurasia and having alternate simple leaves and white or pink flowers.
b. The firm, edible, usually rounded fruit of this tree.
a. Any of several other plants, especially those with fruits suggestive of the apple, such as the crabapple or custard apple.
b. The fruit of any of these plants.
apple of (one's) eye
One that is treasured: Her grandson is the apple of her eye.
[Middle English appel, from Old English æppel.]
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2020 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Indo-European & Semitic Roots Appendices
Thousands of entries in the dictionary include etymologies that trace their origins back to reconstructed proto-languages. You can obtain more information about these forms in our online appendices:
The Indo-European appendix covers nearly half of the Indo-European roots that have left their mark on English words. A more complete treatment of Indo-European roots and the English words derived from them is available in our Dictionary of Indo-European Roots.