| equine virus abortion | A highly contagious abortion of mares, caused by equine rhinopneumonitis virus, a member of the family Herpesviridae. (05 Mar 2000) |
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| tubal abortion | The rupture of an oviduct, the seat of ectopic pregnancy, or extrusion of the product of conception through the fimbriated end of the oviduct; aborted ectopic pregnancy, the pregnancy having originated in the fallopian tubes. Synonym: aborted ectopic pregnancy. (05 Mar 2000) |
| foothill abortion | An infectious disease of cattle transmitted by the tick Ornithodoros coriaceus and manifested as abortion or weak calves at birth; occurs in the foothills of California, Nevada, and Oregon. Synonym: foothill abortion. (05 Mar 2000) |