1. Turning or dipping in any or every direction 
2. Dipping toward all points of the compass round a centre, as beds of lava round a crater

Encyclopedia: Quaquaversal

• family Sciaenidae
• family Sciaridae
• family Scincidae
• family Sciuridae
• family Sclerodermataceae
• family Sclerotiniaceae
• family Scolopacidae
• family Scolytidae
• family Scomberesocidae
• family Scombresocidae
• family Scombridae
• family Scorpaenidae
• family Scrophulariaceae
• family Scutigeridae
• family Scyliorhinidae
• family Secotiaceae
• family Selaginellaceae
• family Sepiidae
• family Septobasidiaceae
• family Serranidae
• family Sialidae
• family Sillaginidae
• family Siluridae
• family Simaroubaceae
• family Simuliidae