Definition of nonagesimal in English:

nonagesimal

noun ˌnɒnəˈdʒɛsɪml

Astronomy and Astrology. The point of the ecliptic which is highest above the horizon at any given time, being 90 degrees round the ecliptic from the point at which it intersects the horizon.

Origin

Early 18th century (in an earlier sense). From classical Latin nōnāgēsimus ninetieth (from nōnāgintā ninety (from novem nine + -gintā, suffix forming cardinal numerals from thirty to ninety, related to decem ten: see decem-) + -ēsimus, extended form (after vīcēsimus) of -simus, suffix used to form ordinal numerals) + -al.

Definition of nonagesimal in US English:

nonagesimal

nounˌnɒnəˈdʒɛsɪml

Astronomy and Astrology. The point of the ecliptic which is highest above the horizon at any given time, being 90 degrees round the ecliptic from the point at which it intersects the horizon.

Origin

Early 18th century (in an earlier sense). From classical Latin nōnāgēsimus ninetieth (from nōnāgintā ninety (from novem nine + -gintā, suffix forming cardinal numerals from thirty to ninety, related to decem ten: see decem-) + -ēsimus, extended form (after vīcēsimus) of -simus, suffix used to form ordinal numerals) + -al.

词汇	nonagesimal
释义	Definition of nonagesimal in English: nonagesimal noun ˌnɒnəˈdʒɛsɪml Astronomy and Astrology. The point of the ecliptic which is highest above the horizon at any given time, being 90 degrees round the ecliptic from the point at which it intersects the horizon. Origin Early 18th century (in an earlier sense). From classical Latin nōnāgēsimus ninetieth (from nōnāgintā ninety (from novem nine + -gintā, suffix forming cardinal numerals from thirty to ninety, related to decem ten: see decem-) + -ēsimus, extended form (after vīcēsimus) of -simus, suffix used to form ordinal numerals) + -al. Definition of nonagesimal in US English: nonagesimal nounˌnɒnəˈdʒɛsɪml Astronomy and Astrology. The point of the ecliptic which is highest above the horizon at any given time, being 90 degrees round the ecliptic from the point at which it intersects the horizon. Origin Early 18th century (in an earlier sense). From classical Latin nōnāgēsimus ninetieth (from nōnāgintā ninety (from novem nine + -gintā, suffix forming cardinal numerals from thirty to ninety, related to decem ten: see decem-) + -ēsimus, extended form (after vīcēsimus) of -simus, suffix used to form ordinal numerals) + -al.
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