1. December 22, when the sun is at its southernmost point

Derived forms: winter solstices

Type of: solstice

Antonym: summer solstice

Part of: winter, wintertime

Encyclopedia: Winter solstice

• genus Silurus
• genus Silvia
• genus Silybum
• genus Simarouba
• genus Simulium
• genus Sinanthropus
• genus Sinapis
• genus Sinningia
• genus Sinornis
• genus Siren
• genus Sison
• genus Sistrurus
• genus Sisymbrium
• genus Sisyrinchium
• genus Sitophylus
• genus Sitotroga
• genus Sitta
• genus Sium
• genus Sivapithecus
• genus Sloanea
• genus Smilax
• genus Smiledon
• genus Smyrnium
• genus Sobralia
• genus Solandra