1
general::
Phrase(s): in particular
specifically; especially. • I’m not going anywhere in particular. • Of the three ideas, there is one I like in particular.
McGrawhill's American Idioms And Phrasal Verbs
2
general::
Especially; also, separately, individually, in detail. For example, The chancellor talked about the curriculum, the core courses in particular, or The orchestra was outstanding, the strings in particular. [c. 1500]
American Heritage Idioms