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ordinal

 - 4 dictionary results

or⋅di⋅nal

1  [awr-dn-uhl]
Use ordinal in a Sentence
–adjective
1. of or pertaining to an order, as of animals or plants.
2. of or pertaining to order, rank, or position in a series.
–noun
3. an ordinal number or numeral.
Origin:
1590–1600; < LL ōrdinālis in order equiv. to L ōrdin- (s. of ōrdō) order + -ālis -al 1

Related forms:
or⋅di⋅nal⋅ly, adverb

or⋅di⋅nal

2  [awr-dn-uhl]
–noun
1. a directory of ecclesiastical services.
2. a book containing the forms for the ordination of priests, consecration of bishops, etc.
Origin:
1350–1400; ME < ML ōrdināle, n. use of neut. of ōrdinālis in order. See ordinal 1
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
Cite This Source Link To ordinal
or·di·nal   (ôr'dn-əl)   
adj.  

  1. Being of a specified position in a numbered series: an ordinal rank of seventh.

  2. Of or relating to a taxonomic order.

n.  

  1. An ordinal number.

  2. Ecclesiastical

    1. A book of instructions for daily services.

    2. A book of forms for ordination.


[Middle English ordinel, orderly, regular, from Late Latin ōrdinālis, ordinal, from Latin ōrdō, ōrdin-, order; see ar- in Indo-European roots. N., sense 2, from Middle English, from Medieval Latin ōrdināle, from Late Latin, neuter sing. of ōrdinālis, ordinal.]
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Computing Dictionary

ordinal mathematics
An isomorphism class of well-ordered sets.
(1995-03-10)

The Free On-line Dictionary of Computing, © 1993-2007 Denis Howe
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