Is it ensure, insure, or assure?
c.1600, from Latin disseminatus, past participle of disseminare "to spread abroad, disseminate," from dis- "in every direction" (see dis-) + seminare "to plant, propagate," from semen (genitive seminis) "seed" (see semen). Related: Disseminated; disseminates; disseminating. Middle English had dissemen "to scatter" (early 15c.).
disseminated dis·sem·i·nat·ed (dĭ-sěm'ə-nā'tĭd)
Spread over a large area of a body, a tissue, or an organ.