Semi- is a numerical prefix meaning "half". The prefix alone is often used as an abbreviation when the rest of the word (the thing which half of is being described) is clear from context.
SEMI Is the global industry association representing the electronics manufacturing supply chain, connecting over 2,000 member companies and 1.3 million professionals worldwide.
The word “semi” is derived from the Latin word “semi re,” which means “half.” This likely refers to the fact that semi-trucks only haul half of a load compared to a full-sized trailer. The other half of the load is typically carried by another truck, which is why semi-trucks are often seen in pairs.
A semi-truck crash on southbound US-131 in Grand Rapids has forced the closure of the on-ramp from westbound I-196 while officials conduct a full structural inspection.
SEMI connects more than 2,500 member companies and 1.3 million professionals worldwide to advance the technology and business of electronics design and manufacturing.
It's a "semi" trailer because it doesn't have its own engine, front axles and wheels, transmission, and so on. Thus, "semi-truck" is a nickname for a truck that carries a semi-trailer.
SEMI Standards form the foundation for innovation in the microelectronics industry. The SEMI Standards process has been used to create more than 1000 industry approved standards and guidelines, based on the work of more than 5,000 volunteers.