(anatomy) Either of two muscles, one voluntary and the other involuntary, controlling closing of the anus in vertebrates.
anal sphincter
| Sci-Tech Dictionary: anal sphincter |
(′ān·əl ′sfiŋk·tər)
| Medical Dictionary: anal sphincter |
| WordNet: anal sphincter |
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The noun has one meaning:
Meaning #1:
the sphincter muscle of the anus
Synonyms: sphincter ani, musculus sphincter ani
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 | Sci-Tech Dictionary. McGraw-Hill Dictionary of Scientific and Technical Terms. Copyright © 2003, 1994, 1989, 1984, 1978, 1976, 1974 by McGraw-Hill Companies, Inc. All rights reserved. Read more |
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| Medical Dictionary. The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Read more |
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| WordNet. WordNet 1.7.1 Copyright © 2001 by Princeton University. All rights reserved. Read more |
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