- (a.) Destitute of a backbone; having no vertebrae; of or pertaining to the Invertebrata.
- (n.) One of the Invertebrata.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). invertebrate. Retrieved September 28, 2026, from http://smartdefine.org/invertebrate/definitions/2023437 |
| Chicago | Webster's. 2011. "invertebrate" http://smartdefine.org/invertebrate/definitions/2023437 (accessed September 28, 2026). |
| Harvard | Webster's 2011, invertebrate, Smart Define, viewed 28 September, 2026, <http://smartdefine.org/invertebrate/definitions/2023437>. |
| MLA | Webster's. "invertebrate" 27 May 2011. Web. 28 September 2026. <http://smartdefine.org/invertebrate/definitions/2023437> |