Dictionary.com
Thesaurus.com

microinject

American  
[mahy-kroh-in-jekt] / ˌmaɪ kroʊ ɪnˈdʒɛkt /

verb (used with object)

Biology.
  1. to inject into a single cell or cell part.


Etymology

Origin of microinject

First recorded in 1975–80; micro- + inject