From Longman Dictionary of Contemporary Englishslim down phrasal verb1to reduce the size or number of something, or to become reduced in size or numberslim something ↔ downThe company is trying to slim down its workforce. toThe Cabinet has been slimmed down to 16 members.2to make your bodythinner, or to become thinner, especially in order to be healthier or more attractiveslim something ↔ downHow can I slim down my hips? toShe slimmed down to a healthy 61 kilos. —slimmed-down adjective →slim→ See Verb table
Examples from the Corpus
slim down• She's really slimmed down a lot since I last saw her.• He's trying to slim down to eleven stone.slim to• Immigrants who made money often tried to slim down toappear to be longtime members of the aristocracy.• Normalmice, too, slimmed down toutter sleekness when they had a little leptin.slim to• Immigrants who made money often tried to slim down to appear to be longtime members of the aristocracy.• Normal mice, too, slimmed down to utter sleekness when they had a little leptin.