pseudo-heart
Pseu"do-heart`, n. Etym: [Pseudo- + heart.] (Zoöl.) Defn: Any contractile vessel of invertebrates which is not of the nature of a real heart, especially one of those pertaining to the excretory system.
Pseu"do-heart`, n. Etym: [Pseudo- + heart.] (Zoöl.) Defn: Any contractile vessel of invertebrates which is not of the nature of a real heart, especially one of those pertaining to the excretory system.