past participle of break the fourth wall

(biology) A structure situated between the primary cell wall and the plasma membrane of plant cells

(biology) The semipermeable outer cell wall of plant cells.

plural of secondary cell wall

(idiomatic) Strict secretiveness maintained by the members of a police force with respect to information which might be contrary to their interests, especially information concerning questionable police actions.

plural of blue wall of silence

(idiomatic) Of a futile or unsuccessful attempt at communication due to the ignorance or stubbornness of the other party.

plural of primary cell wall

Synonym of Great Wall of China

plural of brick-wall limiter