anaphrodisia

from WordNet (r) 3.0 (2006)

anaphrodisia
    n 1: decline or absence of sexual desire [ant: {aphrodisia}]

from The Collaborative International Dictionary of English v.0.48

anaphrodisia \an*aph`ro*dis"i*a\
   ([a^]n*[a^]f`r[-o]*d[i^]z"[i^]*[.a]), n. [NL., fr. Gr. 'an
   priv. + 'afrodi`sia sexual pleasure, 'Afrodi`th the goddess
   of love.] (Med.)
   Absence of sexual appetite. AS
   [1913 Webster]