heart-shaped

from WordNet (r) 3.0 (2006)

heart-shaped
    adj 1: (of a leaf) shaped like a heart [syn: {cordate}, {heart-
           shaped}, {cordiform}]

from 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]