HCS
HCS stands for:
- Hard Clad Silica , short for Hard Clad Silica Fiber (HCSF), an optical fiber with a quartz glass core and a jacket made from a special, patented plastic
- Heliospheric current sheet , a magnetic field from the sun
- High Compression Swirl , an engine in the Kent range of Ford engines
- Hierarchical constraint satisfaction , a method of artificial intelligence
- Hummocky cross stratification , also known as bump stratification , a type of sloping stratification in shallow marine and fluvial sands and sandstones.
- High Carbon Steel , steel with a high carbon content
- High Content Screening a technology for the closer examination of hits in high throughput screening
- HCS Cab Manufacturing Company , former American automobile manufacturer
HC-S stands for:
- Chrysler HC-S , a car model