Search for crossword answers and clues
Addition of side chains has produced semisynthetic antibiotics with greater antibacterial activity
Answer for the clue "Addition of side chains has produced semisynthetic antibiotics with greater antibacterial activity ", 13 letters:
cephalosporin
Alternative clues for the word cephalosporin
Word definitions for cephalosporin in dictionaries
Wikipedia
Word definitions in Wikipedia
The cephalosporins (sg. ) are a class of β-lactam antibiotics originally derived from the fungus Acremonium , which was previously known as " Cephalosporium ". Together with cephamycins , they constitute a subgroup of β-lactam antibiotics called cephems ...
WordNet
Word definitions in WordNet
n. one of several broad spectrum antibiotic substances obtained from fungi and related to penicillin (trade names Mefoxin); addition of side chains has produced semisynthetic antibiotics with greater antibacterial activity [syn: Mefoxin ]
The Collaborative International Dictionary
Word definitions in The Collaborative International Dictionary
Lactam \Lac"tam\, n. [Lactone + amido.] (Chem.) One of a series of anhydrides of an amido type, analogous to the lactones, as oxindol; a cyclic amide. beta-lactam or [beta]-lactam , a lactam in which the amide bond is contained within a four-membered ring, ...
Wiktionary
Word definitions in Wiktionary
n. Any of a class of natural and synthetic antibiotics developed from (taxlink Cephalosporium genus noshow=1) fungi, having a cepham structure.
Usage examples of cephalosporin.
The staph bacteria in question proved resistant to treatment with penicillins, but had responded to high doses of cephalosporin.
Today there are more than fifty different penicillins and seventy-five cephalosporins, all of which use beta-lactam rings in one form or another.
The staph bacteria in question proved resistant to treatment with penicillins, but had responded to high doses of cephalosporin.
The fact that it had failed to respond to cephalosporin, the antibiotic initially used, did not mean it was invulnerable to other forms of attack.
There was a possibility that the cephalosporin resistance indicated broad resistance to other penicillin substitutes.