1. What does Billionth mean? The ordinal number matching the number one billion in a series

2. The ordinal number of one hundred in counting order Familiarity information: Centesimal used as an adjective is rare.

3. Centesimal: 1 adj the ordinal number of one hundred in counting order Synonyms: 100th , hundredth ordinal being or denoting a numerical order in a series adj relating to or divided into hundredths

4. Electrons (e-) are accelerated by means of high voltage which can be applied to the anode (31/32). The anode (31/32) is made of a metal layer having a high ordinal number which is used to convert the electrons (e-) into X-ray radiation (Y) with the aid of a coolant.