| pachytene | <cell biology> Classical term for the third stage of prophase I of meiosis, during which the homologous chromosomes are closely paired and crossing over takes place. (18 Nov 1997) |
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| pachyvaginalitis | Chronic inflammation with thickening of the tunica vaginalis testis. Origin: pachy-+ Mod. L. (tunica) vaginalis, + G. -itis, inflammation (05 Mar 2000) |
| pachyvaginitis | Chronic vaginitis with thickening and induration of the vaginal walls. Origin: pachy-+ vagina + G. -itis, inflammation (05 Mar 2000) |
| pachyvaginitis cystica | vaginitis emphysematosa |