What part of speech is metacarpus?

Metacarpus can be categorized as a noun.

Parts of speech

• 1. metacarpus is a noun, singular of metacarpi / metacarpuses.

Inflections

Noun

• Singular

  Plural
• metacarpus 

  metacarpi  / metacarpuses 

• Singular: metacarpus 
• Plural: metacarpi  / metacarpuses 

What does metacarpus mean?