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Index A
- a
- a- (1)
- a- (2)
- AB
- ab-
- abbreviations: acronyms and initialisms
- abbreviations: ampersand
- abbreviations: business terms and symbols
- abbreviations: capitals and hyphens
- abbreviations: corporate names
- abbreviations: days and months
- abbreviations: degrees and distinctions
- abbreviations: general guidelines
- abbreviations: geographical names
- abbreviations: imperial system
- abbreviations: International System of Units (SI)
- abbreviations: latitude and longitude
- abbreviations: military abbreviations
- abbreviations: monetary units
- abbreviations: netspeak
- abbreviations: number symbols
- abbreviations: parts of a book or document
- abbreviations: periods
- abbreviations: plurals
- abbreviations: scientific and technical terms
- abbreviations: time zones
- abbreviations: titles with personal names
- abeyance
- abide
- abide by
- about
- above-mentioned
- abreast
- absolutely essential
- absolute phrases
- abstain
- abstain from
- abstain in
- abstain on
- accede to
- accordance
- according to
- according to our records
- accord (of one’s own)
- accountable for
- accountable to
- accuracy
- accurate
- acquiesce in
- acquiesce to
- acquiesce with
- action verbs
- active voice
- act on
- act upon
- acu-
- addresses: official languages
- addresses on envelopes and parcels (Linguistic recommendation from the Translation Bureau)
- adequate amount of
- adequate number of
- adjective
- adjective clause
- adjective comparison
- ADT
- adverb clause
- adverb comparison
- adverbs
- adverse
- adverse to
- advice
- advise
- aero-
- a few
- affect
- Afghan
- afghani
- aforementioned
- Afro-
- after
- again
- ageing
- agenda
- agendas
- aggravate
- aging
- agreeable
- agree on
- agree to
- agree with
- agro-
- Alberta
- Albertan
- alliteration
- allo-
- all over again
- allow for
- allow to
- all ready
- all right
- all-time record
- all together
- allude
- allusion
- almost without exception
- along these lines
- already
- alright
- Alta.
- alternate(ly)
- alternative(ly)
- altogether
- alumna
- alumnus
- a.m.
- a mari usque ad mare
- ambi-
- American dollar (symbol) (Linguistic recommendation from the Translation Bureau)
- Americo-
- amount
- an-
- an
- an abundance of
- analyse
- analyze
- and
- and/or
- and so as a result
- Anglo-
- Anglophone
- anniversary
- answer for
- answer to
- ante-
- anti-
- anticipate
- anxious about
- anxious at
- anxious for
- anxious to
- any
- apostrophe: contractions
- apostrophe: plurals
- apostrophe: possession
- apparent
- appear
- appositives
- appraise
- apprise
- approval of
- approval to
- approve
- approve of
- approximately
- approximately about
- apt
- aqua-
- aqui-
- Arabo-
- arch-
- Armeno-
- Armistice Day
- around (1)
- around (2)
- as a consequence of
- as a matter of fact
- as a result of
- as a result of the fact that
- ascend
- ascent
- as far as
- aspire after
- aspire to
- as regards
- assent
- associate to
- associate with
- as soon as
- assume
- assure
- AST
- asterisk at end of sentence
- astro-
- as well as
- Atlantic Daylight Time
- Atlantic provinces
- Atlantic Standard Time
- attention
- attentive
- attentiveness
- at that point in time
- at the present time
- at this point in time
- at variance among
- at variance with
- audit and derived terms (Linguistic recommendation from the Translation Bureau)
- Austro-
- authentic
- autumn
- auxiliary verbs
- avenge
- averse to
- avocation
- awards
- aware of
- Azerbaijani
- Azeri
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Search and Functionalities Area
abbreviations: scientific and technical terms
There is a vast array of technical and scientific abbreviations, such as those for mathematical ratios and operations, physical quantities and constants, or statistical formulas and notations.
Most unabridged dictionaries list such abbreviations. People working in specific disciplines should consult the appropriate manuals in their field.
(For a comprehensive list of such abbreviations, see ABBR: Abbreviations for Scientific and Engineering Terms.)
Biology
In biology, the Latin name for a genus is not abbreviated if used alone.
- Clematis (genus)
When used with the species name, the name of the genus is abbreviated after the first reference. The species name is not abbreviated, however:
- Clematis virginiana (full scientific name at first reference)
- C. virginiana (second and subsequent references)
Chemistry
In symbols for chemical elements, compounds and formulas, use subscript, not superscript, numerals: H2SO4, SO2.
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