
der Zylinder
cylinder
A geometric solid with two parallel, circular bases and a straight, curved side surface.
Im Mathematikunterricht berechneten wir das Volumen eines Zylinders.
In math class, we calculated the volume of a cylinder.
cylinder / top hat
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cylinder
A geometric solid with two parallel, circular bases and a straight, curved side surface.
Im Mathematikunterricht berechneten wir das Volumen eines Zylinders.
In math class, we calculated the volume of a cylinder.

cylinder
A component in an internal combustion engine in which a piston moves up and down to generate power.
Dieses Auto hat einen Motor mit sechs Zylindern.
This car has an engine with six cylinders.

top hat
A tall, stiff hat with a cylindrical shape, formerly worn by men on festive occasions.
Der Zauberer zog ein Kaninchen aus seinem Zylinder.
The magician pulled a rabbit out of his top hat.
The meaning of 'Zylinder' is almost always clear from context. In mathematics it refers to the shape, with cars to an engine part, and with clothing or magicians to the hat.
Ein typischer Motor hat vier, sechs oder acht Zylinder.
A typical engine has four, six, or eight cylinders.
In a technical context, 'Zylinder' is often combined with a number to describe the type of engine. For example, people speak of a 'Vierzylinder' (four-cylinder engine) or an 'Achtzylinder-Motor' (eight-cylinder engine).
Mein neues Auto ist ein Sechszylinder.
My new car is a six-cylinder.
The idiom 'ein Kaninchen aus dem Zylinder zaubern' (to conjure a rabbit out of a top hat) means to present a sudden and unexpected solution to a problem.
Wir brauchen dringend eine neue Idee. Kann niemand ein Kaninchen aus dem Zylinder zaubern?
We urgently need a new idea. Can't anyone pull a rabbit out of a hat?