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pentastich
pentastome
Pentateuch
pentathlete
pentathlon
pentatomic
pentatonic scale
pentavalent
pentazocine
Pentecost
Pentecostal
Pentelic marble
pentene
penthouse
pentimento
Pentland Firth
pentlandite
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pentazocine

pen·taz·o·cine [ pen tázzə sn ]


noun 
Definition:
 
painkiller: a synthetic narcotic drug. Use: painkiller.

[Mid-20th century. <penta- + azo- + octa- + -ine]
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