ordinal number | |
—n | |
1. | Sometimes shortened to: ordinal a number denoting relative position in a sequence, such as first, second, third |
2. | logic, maths a measure of not only the size of a set but also the order of its elements |
ordinal number (ôr'dn-əl) Pronunciation Key
A number, such as 3rd, 11th, or 412th, used in counting to indicate position in a series but not quantity. Compare cardinal number. |
Numbers that indicate the order or position of something in a group or set, such as first, second, or fifteenth. (Compare cardinal numbers.)