1. A mirror (especially one made of polished metal) for use in an optical instrument 
2. A medical instrument for dilating a bodily passage or cavity in order to examine the interior

Derived forms: specula

Type of: medical instrument, mirror

Encyclopedia: Speculum

• port wine
• port-access coronary bypass surgery
• Port-au-Prince
• port-wine stain
• porta
• porta hepatis
• portability
• portable
• portable circular saw
• portable computer
• Portable Document Format
• portable saw
• portacaval shunt
• portage
• portal
• portal hypertension
• portal site
• portal system
• portal tomb
• portal vein
• portamento
• portative
• portcullis
• Porte
• porte-cochère