1. Characteristic of or relating to winter
   - brumal, hibernal

See also: wintery, wintry

• symptomatic
• symptomatically
• symptomatology
• symptomless
• synaeresis
• synaesthesia
• synaesthetic
• synagogue
• Synagrops
• Synagrops bellus
• Synanceja
• Synanceja verrucosa
• synapse
• synapsid
• synapsid reptile
• Synapsida
• synapsis
• synaptic
• Synaptomys
• Synaptomys borealis
• Synaptomys cooperi
• synarthrosis
• sync
• syncarp
• syncarpous