body dys ‧ morph ‧ ic dis ‧ or ‧ der /ˌbɒdi dɪsˈmɔːfɪk dɪsˌɔːdə $ ˌbɑːdi dɪsˈmɔːrfɪk dɪsˌɔːrdər/ BrE AmE ( also body dys‧mor‧phi‧a /-ˈmɔːfiə $ -ˈmɔːr-/) noun [uncountable]
( abbreviation BDD ) a mental condition in which someone wrongly believes that part of their body is very ugly or not normal