| horses | Large, hoofed mammals of the family equidae. Horses are active day and night with most of the day spent seeking and consuming food. Feeding peaks occur in the early morning and late afternoon, and there are several daily periods of rest. (12 Dec 1998) |
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| horseshoe | 1. A shoe for horses, consisting of a narrow plate of iron in form somewhat like the letter U, nailed to a horse's hoof. 2. Anything shaped like a horsehoe crab. 3. <zoology> The Limulus of horsehoe crab. <medicine> Horsehoe head, a bat of the genus Rhinolophus, having a nasal fold of skin shaped like a horsehoe. Source: Websters Dictionary (01 Mar 1998) |
| horseshoe crabs | An arthropod subclass (xiphosura) comprising the north american (limulus) and asiatic (tachypleus) genera of horseshoe crabs. (12 Dec 1998) |
| horseshoe fistula | An anal fistula partially encircling the anus and opening at both extremities on the cutaneous surface. (05 Mar 2000) |
| horseshoe kidney | <radiology> 50% most likely to be other GU anomaly, duplication, cryptorchidism, urethral anomaly, increased kidney tumours, Wilms -- in kids, adenocarcinoma -- later in life (12 Dec 1998) |
| horseshoe placenta | An exaggerated placenta reniformis curved in the form of a horseshoe; present in some twin pregnancies. (05 Mar 2000) |
| biliary fever of horses | <veterinary> A disease of horses caused by species of Babesia and characterised by high fever, icterus, and enlargement of the spleen and lymph nodes. Synonym: biliary fever of horses, equine biliary fever. (05 Mar 2000) |
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| infectious arteritis virus of horses | <virology> A virus of the genus Pestivirus, a member of the family Togaviridae, that causes equine viral arteritis. It is probably the most common cause of equine influenza and an important equine respiratory disease frequently causing abortion, pneumonia, or other infections. Synonym: infectious arteritis virus of horses. (05 Mar 2000) |