¹ Source: wiktionary.com
Definition of Penicillins
1. penicillin [n] - See also: penicillin
Medical Definition of Penicillins
1. A group of antibiotics that contain 6-aminopenicillanic acid with a side chain attached to the 6-amino group. The penicillin nucleus is the chief structural requirement for biological activity. A change in the nucleus will lead to a decrease in anti-bacterial activity. The side-chain structure determines many of the antibacterial and pharmacological characteristics. (goodman and gilman's the pharmacological basis of therapeutics, 8th ed, p1065) (12 Dec 1998)
Lexicographical Neighbors of Penicillins
Literary usage of Penicillins
Below you will find example usage of this term as found in modern and/or classical literature:
1. The Journal of Comparative Pathology and Therapeutics (1888)
"Apart from the low inoculum and 20 ^g. per ml. of the penicillins, ampicillin
showed a slightly slower rate of kill, 4 to 6 hours, ..."
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