a. A tendril-bearing, climbing or sprawling annual plant (Cucumis sativus) widely cultivated for its edible cylindrical fruit that has a green rind and crisp white flesh.
b. The fruit of this plant, harvested when immature and eaten fresh or pickled.
2. Any of several related or similar plants, such as the bur cucumber or the squirting cucumber.
[Middle English cucomer, from Old French coucombre, from Latin cucumis, cucumer-.]
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2018 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.