radio
adjective(ra-dio)
of, relating to, or operated by radiant energy
radio
adjective(ra-dio)
of or relating to electric currents or phenomena (such as electromagnetic radiation) of frequencies between about 3000 hertz and 300 gigahertz
radio
adjective(ra-dio)
of, relating to, or used in radio or a radio set
radio
noun(ra-dio)
the wireless transmission and reception of electric impulses or signals by means of electromagnetic waves
radio
noun(ra-dio)
the use of these waves for the wireless transmission of electric impulses into which sound is converted
radio
noun(ra-dio)
a radio message
radio
verb(ra-dio)
to send or communicate by radio
radio
verb(ra-dio)
to send a radio message to
radio
verb(ra-dio)
to send or communicate something by radio
radio
combining form(ra-dio)
radiant energy : radiation
radio
combining form(ra-dio)
radioactive
radio
combining form(ra-dio)
radium : X-rays
radio
noun(ra-dio)
astronomy dealing with radio waves received from outside the earth's atmosphere
radio
noun(ra-dio)
a radio transmitting station that transmits special radio signals for use (as on a landing field) in determining the direction or position of those receiving them
radio
noun(ra-dio)
an automobile equipped with radio communication
radio
noun(ra-dio)
a collar with an attached radio transmitter that is put on an animal so that its movements in its natural habitat can be remotely monitored
radio
noun(ra-dio)
a direction finder used in navigation