Lying around; surrounding.
Origin of circumjacentLatin circumiac&emacron;ns, circumiacent-, present participle of circumiac&emacron;re, to lie around : circum-, circum- + iac&emacron;re, to lie; see y&emacron;- in Indo-European roots.
- lying around; surrounding
- "...he had established his fame and dominion over the circumjacent tribes" (The Decline And Fall Of The Roman Empire ch. 64)