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Longman Dictionary of Contemporary English
high technology
noun
EXAMPLES FROM CORPUS
▪ If we get it right, displays will be about the only visible evidence of high technology.
▪ In the past couple of decades, Britain has managed to slither from one high technology debacle to another.
▪ In this scenario, capital flows tend towards areas with high technology and high productivity.
▪ Its high technology appeals to parents as well as children, and it was relatively cheap to build.
▪ Much high technology medicine is therefore palliative, alleviating the effects of the disease by relieving pain or restoring mobility.
▪ The £40,000 with of high technology next to it may just as well have come from another world as another country.
▪ There are a number of high technology problems that need answering.
▪ There are projected outlets, too, for new, high-purity silicates currently being developed for applications in high technology.
Wiktionary
high technology

n. Any highly technical or specialized technological application or equipment, especially one that involves complex electronics or computing

WordNet
high technology

n. highly advanced technological development (especially in electronics)

Usage examples of "high technology".

He demands immediate high technology for his country and protests that only second-rate equipment is sold to the Argentine.

If all else has failed, you who heard our signal and are now reading this plaque will at least know that we once existed and achieved a high technology.

This was also a case of applying high technology and state controlled Rapid Dominance against a low-technology guerrilla warfare force.

There, I was offered a vision of a perfect future made possible by science and high technology.

You hold a high technology across hundreds of light-years of space and thousands of years of time.

In order to cope with the pressures of the Revenants' assaults, your people have used biotechnology, nanotechnology, and high technology to allow every officer in your Service to handle neural data loads beyond what one might call your design capacity.

Even with fewer people after the onslaught of the Frost Giants, the infrastructure of Westron was tottering because of the continuing failure of fragile high technology.