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n. pl. pros 1. A professional, especially in sports. 2. An expert in a field of endeavor. adj. Professional: pro football. |
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2022 by HarperCollins Publishers. All rights reserved.
pro- 2
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Tweet pref. 1. a. Earlier; before; prior to: procambium. b. Rudimentary: pronucleus. 2. Anterior; in front of: procephalic. [Middle English, from Old French, from Greek, from pro, before, in front; see per1 in the Appendix of Indo-European roots.] |
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2022 by HarperCollins Publishers. All rights reserved.
