(Note that this list still lacks many important ships.)
(The HMS Pinafore was a fictional creation of Gilbert and Sullivan.)
... syndrome[?] Anophthalmos with limb anomalies[?] Anophthalmos, clinical[?] Anorchia[?] Anorchidism[?] Anorectal anomalies[?] Ano-rectal atresia[?] ...