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).
get onto-understand, usually after some initial difficulty; She didn't know what her classmates were plotting but finally caught on. catch on, cotton on, get it, get wise, twig, latch on, tumble.. Also: get on to board or cause or help to board (a bus, train, etc). 2. (intr) to make contact with; communicate with. 3. (intr) to become aware of (something illicit or secret): the boss will get onto their pilfering unless they're careful.