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

• black oak
• black olive
• black opal
• black operation
• Black Panther
• Black Panthers
• black pea
• black pepper
• Black person
• black pine
• Black Plague
• black poplar
• Black Prince
• black pudding
• Black race
• black racer
• black raspberry
• black rat
• black rat snake
• black rhinoceros
• Black Rock Desert
• black rockweed
• black root rot fungus
• black rot
• black rudderfish