| white-foot | <veterinary> A white mark on the foot of a horse, between the fetlock and the coffin. Source: Websters Dictionary (01 Mar 1998) |
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| white forelock | A triangular or diamond-shaped depigmented macule with white hairs, usually located in the anterior midline of the scalp, seen in piebaldism. (05 Mar 2000) |
| white friar | A mendicant monk of the Carmelite order, so called from the white cloaks worn by the order. See Carmelite. Source: Websters Dictionary (01 Mar 1998) |
| white-fronted | Having a white front; as, the white-fronted lemur. <zoology> White-fronted goose, the white brant, or snow goose. See Snow goose, under Snow. Source: Websters Dictionary (01 Mar 1998) |
| white gangrene | Death of a part accompanied by the formation of grayish white sloughs. Synonym: leukonecrosis. (05 Mar 2000) |
| white graft | Rejection of a skin allograft so acute that vascularization never occurs. (05 Mar 2000) |
| white-heart | <botany> A somewhat heart-shaped cherry with a whitish skin. Source: Websters Dictionary (01 Mar 1998) |
| white infarct | An infarct in which little or no bleeding into tissue spaces occurs when the blood supply is obstructed. Synonym: pale infarct, white infarct. (05 Mar 2000) |
| white lead | A heavy white powder that is insoluble in water; occasionally, it is used to relieve irritation in dermatitis, but it is used largely in the manufacture of paint and in the arts and is thus productive of lead poisoning. Synonym: ceruse, white lead. (05 Mar 2000) |
| white leg | An extreme edematous swelling of the leg following childbirth, due to thrombosis of the iliofemoral veins. Synonym: leukophlegmasia dolens, milk leg, puerperal phlebitis, thrombotic phlegmasia, white leg. (05 Mar 2000) |
| white level | <microscopy> Also reference white level. The IEEE scale, or voltage level, of the video picture signal that corresponds to a specified maximum limit for white peaks. (05 Aug 1998) |
| white line | A pale streak appearing within 30 to 60 seconds after stroking the skin with a fingernail, and lasting for several minutes; regarded as a sign of diminished arterial tension. Synonym: Sergent's white line. (05 Mar 2000) |
| white line of anal canal | A bluish pink, narrow, wavy zone in the mucosa of the anal canal below the pectinate line at the level of the interval between the subcutaneous part of the external sphincter and the lower border of the internal sphincter, said to be palpable. Synonym: Hilton's white line. (05 Mar 2000) |
| white line of frankel | <radiology> Dense zone of provisional calcification at edge of metaphysis, just beneath physis seen in scurvy (12 Dec 1998) |
| white line of Toldt | Lateral reflection of posterior parietal pleura of abdomen over the mesentery of the ascending and descending colon. Junction of parietal peritoneum with Denonvillieri's fascia. (05 Mar 2000) |