1transmit (a programme or some information) by radio or television:the announcement was broadcast live (as noun broadcasting)the state monopoly on broadcasting
[no object] take part in a radio or television transmission:they regularly broadcast on Radio 2
tell (something) to many people:we don’t want to broadcast our unhappiness to the world
2scatter (seeds) by hand or machine rather than placing in drills or rows:the second method is to broadcast the seeds together with not more than 1 kg to the acre of rapeseed
noun
a radio or television programme or transmission:the Queen’s annual Christmas TV broadcast
adjective
relating to radio or television programmes:a broadcast journalist
adverb
by scattering:green manures can be sown broadcast or in rows
Derivatives
broadcaster
noun
Origin:
mid 18th century (in the sense 'sown by scattering'): from broad + the past participle of cast1. Senses relating to radio and television date from the early 20th century
broadcast in other Oxford dictionaries
Definition of broadcast in the US English dictionary