2O or 2-O may refer to:
*2o Sector, see
Secondary sector of the economy
In macroeconomics, the secondary sector of the economy is an economic sector in the three-sector theory that describes the role of manufacturing. It encompasses industries that produce a finished, usable product or are involved in construct ...
*
2'-O-methylation
2'-''O''-methylation is a common nucleoside modification of RNA, where a methyl group is added to the 2' hydroxyl of the ribose moiety of a nucleoside, producing a methoxy group. 2'-''O''-methylated nucleosides are mostly found in ribosomal RNA a ...
*2O, IATA code for Island Air Service in Alaska; see
Essential Air Service
Essential Air Service (EAS) is a U.S. government program enacted to guarantee that small communities in the United States, which had been served by certificated airlines prior to deregulation in 1978, maintained commercial service. Its aim is to ...
See also
*
2OOO
2000FM (call sign 2OOO) is a multilingual community radio station broadcasting to Sydney in languages other than English from studios in the suburb of Burwood. It is a volunteer run organisation and is funded through listener support, grants ...
, a Sydney, Australia radio station
*
O2 (disambiguation)
O2, O-2, o2, O2, O2, O2− or O2+ may refer to:
Science and technology
* or dioxygen, the common allotrope of the chemical element oxygen
* , the ion oxide
* , the ion superoxide
* , the ion dioxygenyl
The dioxygenyl ion, , is a rarely-e ...
*
H2O (Molecule)
*
J20 (disambiguation) J20 or J-20 may refer to: Vehicles Aircraft
* Chengdu J-20, a Chinese fighter
* Reggiane J 20, an Italian fighter in service with the Swedish Air Force
* Soko J-20 Kraguj, a Yugoslavian light attack aircraft
Automobiles
* Jeep J20, an America ...
*
L20 (disambiguation) L20, L-20 or L.20 may refer to:
Vehicles
;Aircraft
* Daimler L20, a German light aircraft
* de Havilland Canada L-20 Beaver, a Canadian utility aircraft
* Zeppelin LZ 59, an airship of the Imperial German Navy
* L-20, a United States Navy L-cla ...
*
N2O (disambiguation)
N2O is the chemical formula for Nitrous oxide
Nitrous oxide (dinitrogen oxide or dinitrogen monoxide), commonly known as laughing gas, nitrous, or nos, is a chemical compound, an oxide of nitrogen with the formula . At room temperature, ...
*
2O (Atom)
*
2Q (disambiguation) 2Q or 2-Q may refer to:
* The second quarter of a calendar year (April, May, June) or fiscal year
*2Q, IATA code for Air Cargo Carriers
*F3D-2Q, a model of Douglas F3D Skyknight
*WV-2Q, a model of Lockheed EC-121 Warning Star
*2q, an arm of Chromo ...
{{Letter-NumberCombDisambig