'boil down' definitions:

Definition of 'boil down'

From: WordNet
verb
Be the essential element; "The proposal boils down to a compromise" [syn: reduce, come down, boil down]
verb
Be cooked until very little liquid is left; "The sauce should reduce to one cup" [syn: boil down, reduce, decoct, concentrate]
verb
Cook until very little liquid is left; "The cook reduced the sauce by boiling it for a long time" [syn: reduce, boil down, concentrate]