There's probably no other way to render this than literally. I'd hazard a guess it's a portmanteau "cen" (hundred) and "quiniela":
quiniela f
a (Esp) (boleto) sports lottery ticket (AmE), pools coupon (BrE); ¿echaste or sellaste la quiniela? did you send/hand in the pools coupon?
b (Esp) (juego): la quiniela or las quinielas the sports lottery (AmE), the football pools (BrE); jugar a las quinielas to play the sport’s lottery, to do the pools ...

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Note added at 39 mins (2013-10-19 10:15:40 GMT)
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It's also a file type: "In the push approach, a sentinel file is sent after the last true source file is pushed . When the ETL receives the sentinel file, it signifies that all of the source files ..."

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Note added at 40 mins (2013-10-19 10:17:04 GMT)
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Then again, I may be off course on this one, which is why my confidence level is medium...