beam

beam 1

•  noun [C]

1   
a) a line of light shining from the sun, a lamp etc:
?The beam of the flashlight flickered and went out.                           

b) a line of energy such as RADIATION or MICROWAVEs

2    a long heavy piece of wood or metal used in building houses, bridges etc

3    a big happy smile

beam 2

• verb

1    [I] to smile or look at someone very happily:
?beam at: Uncle Willie beamed at us proudly.
2    [I,T] to send out energy, light, radio or television SIGNALs:
?The signal is beamed up to a satellite.