Merriam-Webster's Collegiate Dictionary
or·di·nal \\ˈȯrd-nəl, ˈȯr-də-nəl\\ noun DATE 14th century
1. capitalized [Middle English, from Medieval Latin
ordinale, from Late Latin, neuter of
ordinalis]
: a book of rites for the ordination of deacons, priests, and bishops
2. [Late Latin
ordinalis, from
ordinalis, adjective]
: ordinal number
adjective ETYMOLOGY Late Latin ordinalis, from Latin ordin-, ordo
DATE 1599
1. of a specified order or rank in a series2. of or relating to a taxonomic order ordinal
ordinal (n.) 1387, "book setting forth the order of services in the Church," from L.L. adj. ordinalis "showing order, denoting an order of succession," from L. ordo (gen. ordinis) "row, series" (see order). The adj. in Eng., "marking position in an order or series," is attested from 1599.
Oxford Advanced Learner's Dictionary-牛津双解-OALD7
ordinalor·din·al /
5C:dinl;
NAmE 5C:rdEnl / (also
7ordinal 'number)
noun a number that refers to the position of sth in a series, for example 'first', 'second', etc.
序数词(如第一、第二等)⇨ compare
cardinal
n. (2)
• or·din·al adj. Webster's Third New International Dictionary, Unabridged
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ordinal number
or·di·nalI. \ˈȯrd(
ə)nəl, ˈȯ(ə)d-\
noun
(
-s)
Etymology: Middle English, from Medieval Latin
ordinale, from Late Latin, neuter of
ordinalis, adjective
1.
a. usually capitalized
a. : a book containing directions for Roman Catholic services every day in the year
b. : a collection of forms to be used in the Anglican Communion in the consecration of bishops and the ordination of priests and deacons
2. [Late Latin
ordinalis, from
ordinalis, adjective]
: ordinal number
3. : the divisor in a fraction as spoken or written out (as
hundredth in
one hundredth or
hundredths in
three hundredthsII. adjectiveEtymology: Late Latin
ordinalis, from
ordin-, ordo order +
-alis -al — more at
order
1. : being of a specified order or rank (as sixth) in a numerable series
2. : of or relating to an order
< family and ordinal names … of fishes are badly jumbled in the text — New York Herald Tribune Book Review >