1. The oyster.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• istrea,
• kstrea,
• lstrea,
• pstrea,
• 0strea,
• 9strea,
• oatrea,
• oztrea,
• oxtrea,
• odtrea,
• oetrea,
• ostreea,
• ostra,
• ostre,
• ostera,
• ostree,
• ostrya,
• Ostreah,
• Ostreia,
• Ostorea

• ostracoda,
• ostracod,
• oster,
• ostrander,
• ostreidae,
• ostrya,
• Ostrava,
• ostrom,
• ostracism,
• ostracize,
• Ostrem,
• ostrow,
• ostracise.

The adjective form of the word "ostrea" is "ostrean".

The plural form of "ostrea" is "ostreas".

The singular form of the word "ostrea" is "ostreum".