Cefaclor is used for treatment of infections caused by susceptible organisms including H influenzae and for treatment of otitis media, sinusitis, and infections involving the respiratory tract. It may not be appropriate in acute sinusitis, owing to less activity and the potential for severe allergic reactions.
nitrogen-fixing bacteria noun [pl]. âº biology âbacteria that can âabsorb nitrogen from the âair and âchange it into a âform that âplants can use for âfood. (Definition of nitrogen-fixing bacteria from the Cambridge Academic Content Dictionary Â© Cambridge University Press). See all translations.
Nitrogen fixation occurs in nature either due to lightning or nitrogen-fixing bacteria. There are two broad groups of nitrogen-fixing bacteria. The first group includes the free-living bacteria that are not attached to any plant in particular and are found in the soil or in water. Examples of this group include the genera Clostridium and Azotobacter, as well as some blue-green algae.