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 noun [U]. âº 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). 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).
catch someone up on (someone or something). to tell someone the news of someone or something. (Fixed order.) Oh, please catch me up on what your family is doing.Yes, do catch us up! I have to take some time to catch myself up on the news.o tell someone the news of someone or something. (Fixed order.) Oh, please catch me up on what your family is doing. Yes, do catch us up! I have to take some time to catch myself up on the news.