头颌不全长嘴畸胎：头及颌退化的畸胎，故皮肤成皱褶状悬于口之周围- Acantharea
- acantharian
- acanthesthesia
- Acanthia lectularia
- acanthion
- acantho-
- Acanthobdellidea
- Acanthocephala
- acanthocephalan
- acanthocephaliasis
- acanthocephalous
- Acanthocephalus
- Acanthocheilonema
- acanthocheilonemiasis
- acanthocyte
- acanthocytosis
- acanthoid
- acantholysis
- acantholytic
- acanthoma
- acanthopelvis
- acanthopelyx
- Acanthophis
- Acanthopodina
- Acanthopterygii