wiki says
http://en.wikipedia.org/wiki/Asexuality
Asexuality (sometimes referred to as nonsexuality), in its broadest sense, is the lack of sexual attraction to others or the lack of interest in sex. It may also be considered a lack of a sexual orientation. One commonly cited study published in 2004 placed the prevalence of asexuality at 1%.
Actress-Comedian Janeane Garofalo said
"During her filmed stand-up show in Seattle, she brought up her ten-year asexual relationship with her boyfriend, describing herself as having no interest in sex whatsoever"
aromantic: lack of romantic attraction towards anyone
biromantic: romantic attraction towards person(s) of two different genders – the romantic aspect of bisexuality
heteroromantic: romantic attraction towards person(s) of a different gender – the romantic aspect of heterosexuality
homoromantic: romantic attraction towards person(s) of the same gender – the romantic aspect of homosexuality
panromantic (also omniromantic): romantic attraction towards person(s) of any gender or lack of gender, including persons of nonbinary gender – the romantic aspect of pansexuality
transromantic: romantic attraction towards person(s) of variant or ambiguous gender – the romantic attraction to transgender or intersex individuals
polyromantic: romantic attraction towards multiple, but not all, genders and gender identities – the romantic aspect of polysexuality
grey-romantic (gray-romantic): Between aromantic and romantic, can be frequency or strength of the romantic attraction (the term does not express the gender of these persons)
demiromantic: romantic attraction after developing an emotional connection beforehand (the term does not express the gender of these persons)
Wide range of what goes with sex or does NOT.
(Edited 26 seconds later.)
Lack of interest in sex, by definition.
@previous (Meta !PARAdoxiHw)
By definition it could also mean lacking sex organs.
It's a disease.