the GNU version of the Collaborative International Dictionary of English
ad. In company with others; unitedly; concurrently.
The Century Dictionary and Cyclopedia
So as to be concomitant; in company or combination; accessorily.
Word Usage
"Together with this our results show Islet 1 expression concomitantly with Pax3 and Pax7 expression in differentiated PNS neurons indicating strong dorsalization of the hNPs cultures."