apical complex
group of cytoskeletal structures and associated membrane-bounded organelles found at the anterior end of adult obligate intracellular protozoan parasites in the phylum Apicomplexa. The apical complex is involved in attachment to and penetration of
en-GB/ˈæpɪkəl ˈkɒmplɛks/
en-US/ˈæpɪkəl ˈkɑmplɛks/