In dictionaries:
breakthrough bleeding
Unexpected bleeding between menstrual periods.
Breakthrough curve
A breakthrough curve in adsorption is the course of the effluent adsorptive concentration at the outlet of a fixed bed adsorber.
breakthrough pain
Sudden, intense flare-up of pain.
breakthrough thinking
allergic breakthrough
breakthrough infection
A breakthrough infection is a case of illness in which a vaccinated individual becomes infected with the illness, because the vaccine has failed to provide complete immunity against the pathogen (currently only viruses).
Breakthrough Starshot
a research and engineering project by the Breakthrough Initiatives to develop a proof-of-concept fleet of light sail interstellar probes named Starchip, to be capable of making the journey to the Alpha Centauri star system 4.34 light-years away.
Breakthrough Energy
the umbrella name of several organizations, founded by Bill Gates in 2015, that aim to accelerate innovation in sustainable energy and in other technologies to reduce greenhouse gas emissions.
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