1. The penicillin that constitutes the principal component of many commercial antibiotics
   - benzylpenicillin

Type of: penicillin

• sinus venosus sclerae
• sinusitis
• sinusoid
• sinusoidal
• sinusoidal projection
• sinusoidally
• Sion
• Siouan
• Siouan language
• Siouan-speaking
• Sioux
• Sioux City
• Sioux Falls
• sip
• Sipah-e-Sahaba
• siphon
• siphon off
• Siphonaptera
• Siphonophora
• siphonophore
• SIPP
• sipper
• sippet
• Sipuncula
• sipunculid