The Collaborative International Dictionary of English v.0.48:
Shortcake \Short"cake`\, n. An unsweetened breakfast cake shortened with butter or lard, rolled thin, and baked. [1913 Webster]WordNet (r) 3.0 (2006):
shortcake n 1: very short biscuit dough baked as individual biscuits or a round loaf; served with sweetened fruit and usually whipped cream