| Casal's necklace | A dermatitis partly or completely encircling the lower part of the neck in pellagra. (05 Mar 2000) |
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| Casal, Gasper | <person> Spanish physician, 1691-1759. See: Casal's necklace. (05 Mar 2000) |
| casamino acid | <biochemistry> The group of amino acids which results when casein, a protein found in milk, is broken down by enzymes. (09 Oct 1997) |
| casamino acids | Trivial term for the mixture of amino acids derived by hydrolysis of casein; used in bacterial and similar growth media. (05 Mar 2000) |