The Collaborative International Dictionary of English v.0.48:
Mesoblastic \Mes`o*blas"tic\, a. (Biol.) Relating to the mesoblast; as, the mesoblastic layer. [1913 Webster]WordNet (r) 3.0 (2006):
mesoblastic adj 1: relating to or derived from the mesoderm [syn: mesoblastic, mesodermal]