Definition of fab
Examples of fab in a sentence
We had a fab time.
<that designer's new line of spring clothing is absolutely fab>
First Known Use of fab
FAB Defined for English Language Learners
Definition of fab for English Language Learners
: extremely good
Medical Definition of Fab
: a fragment of an antibody that contains one antigen-binding site, one complete light chain, and part of one heavy chain
Seen and Heard
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