Wikipedia
A parliamentary system is a system of democratic governance of a state where the executive branch derives its democratic legitimacy from legislature ( parliament) and is also held accountable to that legislature. In a parliamentary system, the head of state is normally a different person from the head of government. This is in contrast to a presidential system in a democracy, where the head of state often is also the head of government, and most importantly, the executive branch does not derive its democratic legitimacy from the legislature.
Countries with parliamentary systems may be constitutional monarchies, where a monarch is the head of state while the head of government is almost always a member of the legislature (such as the United Kingdom, Sweden and Japan), or parliamentary republics, where a mostly ceremonial president is the head of state while the head of government is regularly from the legislature (such as Ireland, Germany, India and Italy). In a few parliamentary republics, such as Botswana, South Africa and Suriname, as well as German states, the head of government is also head of state, but is elected by and is answerable to the legislature.
Usage examples of "parliamentary system".
On the other hand, through the annual vote on the taxes, not only were waste and arbitrariness in the employment of the public funds put a stop to, but also the foundations of the parliamentary system of government were laid: whoever holds the purse-strings is, or becomes, master of the rest.
Once Professor Wilson had grasped this, he had opted for a parliamentary system.
Under pressure from landowners and a public outcry at the killing of 236 unarmed Welsh men and women, the Chartists managed to push the government to early reform of the parliamentary system.
The government appears to be loosely patterned on the British parliamentary system, without the monarchy.
Padraig O'Neil was an insult to the British parliamentary system, an elected mouthpiece for the Provisional IRA.
Moore, your organization issued a demand an hour ago calling for the dissolution of the presidency and its replacement by a rotating executive council, subject to a parliamentary system providing quick recall.
A parliamentary system like ours is inefficient in certain ways, but it's what we're stuck with.
That reflects the parliamentary system to the extent that that's democratic.
Schools, railway trains, parliamentary system, all worthwhile things.
You can't have a parliamentary system without these official figures who represent the State, the Crown, the whole body of government, as well as the elected fellows who represent their voters.