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English-Thai Dictionary

pyron

N ประตูเข้า  ทางเข้า  span entrance door pra-tu-kao

 

pyrone

N สารประกอบ ที่ พบ ใน ฝิ่น 

 

Webster's 1913 Dictionary

PYRONE

Py `rone, n. [G. pyron, an abbr. of pyrokoman.] (Org. Chem. )

 

Defn: An unsaturated cyclic compound, C5H4O2, of which two varieties are known, a and g. g-pyrone is the parent substance of several natural yellow dyestuffs.

 

PYRONOMICS

Pyr `o *nom "ics, n. Etym: [Pyro- + Gr.

 

Defn: The science of heat.

 

Duden Dictionary

Pyron

Py ron Substantiv, maskulin Chemie , der |Pyr o n |der Pyron; Genitiv: des Pyrons, Plural: die Pyrone organische Verbindung, die in verschiedenen Pflanzenfarbstoffen enthalten ist