Definition of St Peter's fish in English:

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St Peter's fish

noun

A fish with a dark mark near each pectoral fin, in particular a widely farmed cichlid of Africa and the Middle East (also called tilapia).
  • Sarotherodon galileus, family Cichlidae. Alternative name: Galilee cichlid
Example sentences
  • In the Pacific regions or in small lakes in the United States, St. Peter's Fish are known by the name Tilapia or, more often than not, Sunfish.
  • In Galilee St Peter's fish, Sarotherodon galilaeus (Cichlidae), male care, female care and biparental care all occur in the same population.

Origin

With biblical allusion to Matt. 17:27.

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