Conservative MP Stephen Woodworth's pro-life bill was soundly defeated in the House of Commons and revealed a big divide in the government caucus on the abortion issue.
The bill called on Parliament to study the definition of a human being.
Ten federal cabinet ministers voted in favour of the bill including the Minister Responsible for Status of Women Rona Ambrose.
Perth-Wellington MP Gary Schellenberger voted against the proposed legislation along with Prime Minister Stephen Harper.
The bill was defeated 203-to-91.