无膜泛成孢子虫亚目：微孢子虫纲(class Microsporea)微孢子虫目(order Microsporida)中的寄生性原虫亚目，一般皆无泛成孢子细胞膜，如有亦为残遗，而决不会持续为孢子体囊，成孢子细胞以双核最为常见；代表属有脑胞内原虫属(Encephalitozoon)，格留虫属(Glugea)和微粒子虫属(Nosema)- levocycloduction
- levodopa
- Levo-Dromoran
- levoduction
- levofuraltadone
- levogram
- levogyral
- sulfamerazine
- sulfameter
- sulfamethazine
- sulfamethizole
- sulfamethoxazole
- sulfamethoxypyiridazine
- sulfamethyldiazine
- sulfamethylthiadiazole
- Sulfamezathine
- sulfamido
- sulfamidochrysoidine
- sulfamine
- sulfamonomethoxine
- sulfamoxole
- Sulfamylon
- sulfanilamide
- sulfanilate
- sulfanilic acid