1. State of being adjusted to a certain wave length; agreement or tuning between the time period of an apparatus emitting electric oscillations and that of a receiving apparatus, esp. in wireless telegraphy

Derived forms: syntonies

• blue goose
• blue grama
• blue gum
• blue jack
• blue jasmine
• blue jay
• blue jean
• blue jessamine
• blue jet
• blue joke
• blue law
• blue lotus
• blue mahoe
• blue marguerite
• blue marlin
• blue mockingbird
• blue mold fungus
• blue moon
• blue mould fungus
• Blue Mountain tea
• blue murder
• Blue Nile
• blue note
• blue orchid
• blue pea