transponder /tranz-ponˈdər, tränz-, -s-/

A radio or radar device that, on receiving a signal, transmits a signal of its own

• lay siege to
• lay sister
• lay someone a stymie
• laystall
• laystalls
• lay store by
• lay the table
• lay the venue
• laytime
• laytimes
• lay to
• lay to heart
• lay to rest
• lay to someone's charge
• lay under
• lay up
• lay-up
• lay upon
• lay-ups
• lay vicar
• lay vicars
• lay wait
• lay waste
• laywoman
• laywomen