Phauloptera: an ordinal term for the scale insects (Laporte 1835).
Ordinal—That form of the numeral that shows the order of anything in a series.
If the ordinal expression of number be used on the title-page, the figures may be given, and the ordinal termination omitted.
An 'ordinal' is a book showing the order of church services and ceremonies.
Ordinal numerals are adjectives ...