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1. Informal Conceit; egotism.
2. also big·head (bĭg′hĕd′) Any of various diseases of animals, especially rams, characterized by swelling of the head, face, or neck.
1. informal a conceited person
2. informal US and Canadian conceit; egotism
3. vet science
a. an abnormal bulging or increase in the size of an animal's skull, as from osteomalacia
b. any of various diseases of sheep characterized by swelling of the head, esp any caused by infection with Clostridium bacteria
1. Informal. conceit.
a. inflammation of the head in sheep, caused by a bacterial infection.
b. enlargement of the head in horses, caused by nutritional hypothyroidism.
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|Noun||1.||bighead - any of various diseases of animals characterized by edema of the head and neck|
animal disease - a disease that typically does not affect human beings