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bullock's-heart

American  
[bool-uhks-hahrt] / ˈbʊl əksˌhɑrt /
Or bullock heart

noun

  1. the large, edible fruit of a tropical American tree, Annona reticulata.


bullock's heart British  

noun

  1. another name for custard apple custard apple

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of bullock's-heart

First recorded in 1865–70; so called from its size, color, and shape