Below or beneath another part. [L. sub-jaceo, to lie under]
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sub·ja·cent səb-'jās-ənt adj lying immediately under or below <\subjacent tissue> <severe bone loss \subjacent to gingival inflammation>
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sub·ja·cent (səb-jaґsənt) [sub- + L. jacere to lie] lying just beneath or underneath.Medical dictionary. 2011.