1. Present and ready for use; at hand; accessible: kept a fire extinguisher available at all times.
2. Capable of being gotten; obtainable: a bedspread available in three colors.
3. Qualified and willing to serve or assist: a list of available candidates; was not available for comment.
a. Chemistry Capable of being used in a chemical reaction: available electrons.
b. Botany Present, as in soil, and capable of being used by plants as a nutrient: available water; available minerals.
a·vail′a·bili·ty, a·vaila·ble·ness n.
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2019 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.