popocacitlalin.

Headword: 
popocacitlalin.
Principal English Translation: 

comet (See Karttunen)

Orthographic Variants: 
popōcacītlal
IPAspelling: 
popoːkɑsiːtɬɑl
Frances Karttunen: 

POPŌCACĪTLAL-IN comet / cometa (T) [(1)Tp.175]. See POPŌCA, CĪTLAL-IN.
Frances Karttunen, An Analytical Dictionary of Nahuatl (Norman: University of Oklahoma Press, 1992), 203.