The Collaborative International Dictionary of English v.0.48:
heartshaped \heart"shaped`\, heart-shaped \heart"-shaped`\(h[aum]rt"sh[=a]pt`), a. Having the shape of a heart; cordate; -- of a leaf shape. [1913 Webster]WordNet (r) 3.0 (2006):
heart-shaped adj 1: (of a leaf) shaped like a heart [syn: cordate, heart- shaped, cordiform]