1. (informal) very fashionable and popular

Encyclopedia: All the rage

• genus Sphenodon
• genus Sphyraena
• genus Sphyrapicus
• genus Sphyrna
• genus Spilogale
• genus Spinacia
• genus Spinus
• genus Spiraea
• genus Spiranthes
• genus Spirillum
• genus Spirochaeta
• genus Spirodela
• genus Spirogyra
• genus Spirula
• genus Spizella
• genus Spodoptera
• genus Spondias
• genus Sporobolus
• genus Spraguea
• genus Spyeria
• genus Squalus
• genus Squatina
• genus Squilla
• genus Stachys
• genus Stanhopea