Current UK practice, supported by NICE guidance is to complete local pelvic treatment with surgery±pre-operative radiotherapy, before considering systemic adjuvant chemotherapy (AC) 2018, Gollins S et al., “A prospective phase II study of pre-operative chemotherapy then short-course radiotherapy for high risk rectal cancer: COPERNICUS”, in British Journal of Cancer:
(abbreviation, alt-of, initialism, uncountable) Initialism of air conditioning.
Fewer than 20 percent of Europeans have air-conditioning, as opposed to nearly 90 percent of Americans, and while you’d think Europe’s governments and people would be rushing to fully integrate ACs into their cooling arsenal, that’s no simple task for a variety of reasons. 2026 June 30, Chas Danner, “Europe’s Great AC Debate: Highlights, Hot Takes, and Hysteria”, in Intelligencer, New York, N.Y.: New York Media, →ISSN, →OCLC, archived from the original on 30 Jun 2026:
Our summer electric bill is around $120/month just from using 15,000 and 10,000 btu ACs. 1997 June 18, Brooks Taylor, “AC/Heat from ground?”, in sci.engr.heat-vent-ac (Usenet), archived from the original on 01 Jul 2026:
If you want to cool or heat specific rooms with better efficiency, more power, and less clutter than window ACs and space heaters—and less complexity than central HVAC—consider a mini-split system. 2020 June 29, Doug Mahoney, Harry Sawyers, “The Best Ductless Mini Split Air Conditioner”, in Wirecutter, New York, N.Y.: The New York Times Company, →ISSN, →OCLC, archived from the original on 25 Jul 2020:
(abbreviation, alt-of, countable, initialism, uncountable) Initialism of air corps.
(abbreviation, alt-of, countable, initialism, uncountable) Initialism of alternating current (often used to indicate an alternating potential rather than a current).
(broadly, countable, informal, uncountable) Initialism of alternating current (often used to indicate an alternating potential rather than a current). ▸ supply of electric energy via a public electricity grid
(abbreviation, alt-of, countable, initialism, uncountable) Initialism of area code.
(US, abbreviation, alt-of, countable, initialism, uncountable) Initialism of Auxiliary Collier (a naval coal transport that travels with the fleet to provide coal for coal-powered warships).
(UK, abbreviation, alt-of, countable, initialism, uncountable) Initialism of assistant commissioner, a police rank used in London's Metropolitan Police.
We the women in A.C. are on a hunger strike. 1988 February 7, Delana Emery, “Women Prisoners On Hunger Strike For Equal Rights”, in Gay Community News, volume 15, number 29, page 5:
(abbreviation, alt-of, countable, initialism, qualifier:Anglicanism, uncountable) Initialism of Anglo-Catholic.
I've been thinking of getting a little 6000BTU unit to AC my bedroom so I can venture into lower altitudes during the summer. 2008 June 22, ~~NoMad~~, “An amazing AC unit”, in alt.energy.homepower (Usenet), archived from the original on 01 Jul 2026:
My heating and cooling bills were within reason for the past 3 years. We only ran the AC/Heat from 6pm to midnight, but with the arrival of my son and mother-inlaw^([sic]) we must heat and AC 24 hrs a day. 1997 June 18, Brooks Taylor, “AC/Heat from ground?”, in sci.engr.heat-vent-ac (Usenet), archived from the original on 01 Jul 2026:
Forms
Spelling
Features
Labels
Source
a/c
alternative
lexicographic
ACs
Number=Sing, Person=3, Tense=Pres
lexicographic
ACed
Tense=Past, VerbForm=Part
lexicographic
ACed
Tense=Past
lexicographic
A. C.
alternative
lexicographic
ACing
Tense=Pres, VerbForm=Part
lexicographic
A.C.
alternative
lexicographic
a.c.
alternative
lexicographic
A/C
alternative
lexicographic
ac
alternative
lexicographic
AC en · X
Meanings
(abbreviation, alt-of, initialism) Initialism of all clear (as in button on electronic calculator).