Allium. Alliaceae . A genus of the plant family Amaryllidaceae. Many produce pungent, often bacteriostatic and physiologically active compounds and are used as VEGETABLES; CONDIMENTS; and medicament, the latter in traditional medicine. . 0.52
Alluvium. Alluvial Deposit . Material deposited by rivers. It consists of silt, sand, clay, and gravel and often contains a good deal of organic matter, yelding to very fertile soils. (http://www.britannica.com/EBchecked/topic/16665/alluvium, accessed on June 5th, 2012). . 0.52
Alleles. Allele . Allelomorph . Allelomorphs . Variant forms of the same gene, occupying the same locus on homologous CHROMOSOMES, and governing the variants in production of the same gene product. . 0.51
Hypersensitivity. Allergic Reaction . Allergic Reactions . Allergies . Hypersensitivities . Reaction, Allergic . Reactions, Allergic . Allergy . Altered reactivity to an antigen, which can result in pathologic reactions upon subsequent exposure to that particular antigen. . 0.48