The vast majority of bacteria do not cause disease, and many bacteria are actually helpful and even necessary for good health. These bacteria are sometimes referred to as âgood bacteriaâ or âhealthy bacteria.â. Harmful bacteria that cause bacterial infections and disease are called pathogenic bacteria.
catch-up adjective [before noun]. âº used to âdescribe something that âhelps you âreach the same âstandard or âstage as âothers, usually after you have âmissed something such as âlessons or âopportunities to âpractise: catch-up âexercises/âsessions. the âprocess of âtrying to âreach the same âstandard or âquality as someone or something else when they have become more âadvanced or âsuccessful: I'm playing catch-up because of the weeks of âtraining I have missed. (Definition of catch up from the Cambridge Business English Dictionary Â© Cambridge University Press).
Wiktionary(0.00 / 0 votes)Rate this definition: catch(Noun) The act of seizing or capturing. The catch of the perpetrator was the product of a year of police work. catch(Noun) The act of catching an object in motion, especially a ball. catch(Noun) The act of noticing, understanding or hearing.