HCE may refer to:
The HCE was a British four wheeled cyclecar made in 1912 and 1913 originally by H.C.E. Cars of London SW and later by the Easycar Company at a 30-acre (120,000 m2) site with test track in Harold Wood, Essex.
The car used a single cylinder Buckingham engine with a tax rating of 6/8 HP driving by chain to a two speed gearbox and then by belt to the rear wheels.
A range of body styles were advertised including four seaters. In 1913, and very unusual for the time, four wheel brakes were fitted.
Cocaine esterase (EC 3.1.1.84, CocE, hCE2, hCE-2, human carboxylesterase 2) is an enzyme with system name cocaine benzoylhydrolase. This enzyme catalyses the following chemical reaction
Rhodococcus sp. strain MB1 and Pseudomonas maltophilia strain MB11L can utilize cocaine as sole source of carbon and energy.