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There are 4 words beginning with PENICILLIN

PENICILLIN	• penicillin n. (Pharmacology) Any of a group of narrow-spectrum antibiotics obtained from Penicillium molds or synthesized… • penicillin n. (Mycology) A blue mold of the genus Penicillium that produces penicillin. • PENICILLIN n. any of a group of substances that stop the growth of bacteria, extracted from moulds, esp. from Penicillium notatum.
PENICILLINASE	• penicillinase n. (Biochemistry) A specific type of beta-lactamase showing specificity for penicillins. • PENICILLINASE n. an enzyme, produced by certain bacteria, that inactivates the effect of some penicillins.
PENICILLINASES	• penicillinases n. Plural of penicillinase. • PENICILLINASE n. an enzyme, produced by certain bacteria, that inactivates the effect of some penicillins.
PENICILLINS	• penicillins n. Plural of penicillin. • PENICILLIN n. any of a group of substances that stop the growth of bacteria, extracted from moulds, esp. from Penicillium notatum.

Scrabble words — in black are valid world wide — in RED are not valid in North America — in GREEN are valid only in North America.
Definitions are short excerpt from the WikWik.org and 1Word.ws.

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English Wiktionary: 12 words
Scrabble in French: 4 words
Scrabble in Spanish: no word
Scrabble in Italian: 6 words
Scrabble in German: no word
Scrabble in Romanian: no word

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