Cir`cum·ja'cent adjective [ Latin circumjacens , present participle of circumjacere ; circum + jacēre to lie.] Lying round; bordering on every side. T. Fuller. Found on http://www.encyclo.co.uk/webster/C/82
Circumjacent: Lying around in the sense of surrounding. Related terms include superjacent, subjacent, and adjacent. From circum-, around + the Latin jacere, to lie = to lie around. Found on http://www.medterms.com/script/main/art.asp?articlekey=40138