Pseudo-heart

1 definition found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Pseudo-heart \Pseu"do-heart`\, n. [Pseudo- + heart.] (Zool.)
     Any contractile vessel of invertebrates which is not of the
     nature of a real heart, especially one of those pertaining to
     the excretory system.
     [1913 Webster]