bighead

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bighead

a general swelling of the head.

equine bighead
ovine bighead
a form of malignant edema due to Clostridium novyi in rams, usually the result of fighting. Called also swelled head.
yellow bighead
a syndrome of photosensitive dermatitis, causing edema of the ears and face, and a concurrent jaundice in sheep. Usually found in association with poisoning with millet or other Panicum spp. grasses, or Tribulus terrestris; called also geeldikkop, dikoor.
References in periodicals archive ?
AC-217,300, a promising new insecticide for use in baits for control of the bigheaded ant in pineapple.
note: Preliminary field tests on the suitability of Amdro and Distance in ant bait container for control of the bigheaded ant, Pheidole megacephala (Hymenoptera: Formicidae).