1. Lacking a head or a clearly defined head
   "acephalous worms"

See also: headless

• monogamous
• monogamousness
• monogamy
• monogenesis
• monogenetic
• monogenic
• monogenic disease
• monogenic disorder
• monoglot
• monogram
• monogrammatic
• monogrammic
• monograph
• monogynic
• monogynist
• monogynous
• monogyny
• monohull
• monohybrid
• monohybrid cross
• monohydrate
• monoicous
• monolatry
• monolingual
• monolingually