submerse
verb
[ səbˈməːst ]
• submerge.
• "pellets were then submersed in agar"
Origin:
late Middle English: from Latin submers- ‘plunged below’, from the verb submergere (see submerge).
submersed
adjective
• relating to or characteristic of a plant growing entirely underwater.
• "in its natural habitat it grows mainly in submersed form"