[syn: atavistic, throwback(a)]
The Collaborative International Dictionary of English v.0.48:
throwback \throw"back\, n.
1. the reappearance in an organism of characteristics of an
earlier ancestral type; atavism.
[PJC]
2. an organisms having characteristics of an earlier
ancestral type.
[PJC]
[1913 Webster]
WordNet (r) 3.0 (2006):
throwback
adj 1: characteristic of an atavist [syn: atavistic,
throwback(a)]
n 1: an organism that has the characteristics of a more
primitive type of that organism [syn: atavist,
throwback]
2: a reappearance of an earlier characteristic [syn: atavism,
reversion, throwback]