1. In some classifications the family of the genus Xenopus which is otherwise included in the family Pipidae
   - family Xenopodidae

Type of: amphibian family

• sinus paranasales
• sinus rectus
• sinus sigmoideus
• sinus transversus
• 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