GNU Webster's 1913
- adj. one who is, or has been, nursed at the same breast, or brought up by the same nurse as another, but is not of the same parentage.
- n. your foster brother is a male who is not a son of your parents but who is raised by your parents
“The students who took the advice will have found that Froude was guilty of some strange inadvertences, such as mistaking through a misprint a foster brother for a collection of the classics, but they will not have discovered anything which substantially impairs the value of his work.”
“Iberian, a Monophysite ascetic, and St. Cosmas, foster brother and friend of St. John Damascene.”
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