Plural form: people who identify as asexual, meaning they experience little to no sexual attraction to others.
From asexual (a- 'without' + sexual) + -s (plural suffix), a term that gained widespread use only in the 2000s as online communities developed terminology.
The word asexuals is fascinating because it's a very recent addition to English—it's probably younger than many of your parents, created when internet communities needed a noun form for people with this identity.
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