noun
- A muscle that contracts without conscious control and found in walls of internal organs such as stomach and intestine and bladder and blood vessels (excluding the heart.
- synonyms: involuntary muscle
- Muscle tissue that does not appear striated under the microscope; has the form of thin layers or sheets. .
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). smooth muscle. Retrieved September 21, 2026, from http://smartdefine.org/smooth_muscle/definitions/1213070 |
| Chicago | WordNet. 2010. "smooth muscle" http://smartdefine.org/smooth_muscle/definitions/1213070 (accessed September 21, 2026). |
| Harvard | WordNet 2010, smooth muscle, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/smooth_muscle/definitions/1213070>. |
| MLA | WordNet. "smooth muscle" 23 October 2010. Web. 21 September 2026. <http://smartdefine.org/smooth_muscle/definitions/1213070> |