| 释义 |
n.The distal end of the anal canal, forming a transitional zone between the skin of the anal canal and the perianal skin. Words nearby anal vergeanal retentive, anal sinus, anal sphincter, anal stage, anal vein, anal verge, analysand, analyse, analyses, analysis, analysis of variance The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company. |