HCL

HCL or HCl (with the last letter being lowercase L) can stand for:

• Hairy cell leukemia, an uncommon and slowly progressing B cell leukemia
• Hardware compatibility list
• Harvard Cyclotron Laboratory, from 1961 to 2002, a proton accelerator used for research and development
• Hennepin County Library
• Hydrogen chloride, chemical formula HCl
• Hydrochloric acid, a solution of hydrogen chloride in water
• Hydrochloride, the salt of a hydrochloric acid and an organic base
• Hollow cathode lamp, a spectral line source used in physics and chemistry
• Higher Chinese Language, an academic subject in Singapore
• HC Lugano, a Swiss professional ice hockey team based in Lugano
• Hindustan Computers, formerly Hindustan Computers Limited, and its business units
• HCL Enterprise, an IT outsourcing firm based in Noida, India

See also

• HCI (disambiguation), with the last letter being uppercase "i"