A18 or A-18 is a
three-character acronym that may refer to:
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A18 road (disambiguation), in several countries
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A-18 Shrike, a Curtiss Model 76A twin radial engine monoplane service test aircraft of the mid-1930s
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Aero A.18
The Aero A.18 was a biplane fighter aircraft built in Czechoslovakia in the 1920s. It was a development of the Ae 02 and Ae 04 fighters Aero had designed during World War I, but also borrowed from the more recent A.11 reconnaissance-bomber d ...
, a Czech fighter aircraft built in the 1920s
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Arrows A18, a Formula One car
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British NVC community A18 (Ranunculus fluitans community) Ranunculetum fluitantis is one of the 24 Aquatic plant communities (A18) included in the British National Vegetation Classification (NVC).
The vegetation type or community comprises stands of submerged vegetation dominated by clumps of River water ...
, a plant community
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''Cunninghamella'' A18, a fungus strain
* A18, one of the Encyclopaedia of Chess Openings codes for the
English Opening
The English Opening is a chess opening that begins with the move:
:1. c4
A flank opening, it is the fourth most popular and, according to various databases, one of the four most successful of White's twenty possible first moves. White begins th ...
in chess
* Subfamily A18, a
rhodopsin-like receptors
Rhodopsin-like receptors are a family of proteins that comprise the largest group of G protein-coupled receptors.
Scope
G-protein-coupled receptors, GPCRs, constitute a vast protein family that encompasses a wide range of functions (including ...
subfamily
*
F/A-18 Hornet
The McDonnell Douglas F/A-18 Hornet is an all-weather, twinjet, twin-engine, supersonic aircraft, supersonic, carrier-based aircraft, carrier-capable, Multirole combat aircraft, multirole combat aircraft, designed as both a Fighter aircraft, ...
, an all-weather carrier-based strike fighter designed to fill the roles of fighter aircraft and attack aircraft
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