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Mammal vs Undefined - What's the difference?

mammal | undefined |

As a noun mammal

is an animal of the class mammalia, characterized by being warm-blooded, having hair and feeding milk to its young.

As an adjective undefined is

lacking a definition or value.

mammal

English

(wikipedia mammal) {{ picdic , image=Tiger in the water.jpg , detail1= , detail2= }}

Noun

(en noun)
  • An animal of the class Mammalia, characterized by being warm-blooded, having hair and feeding milk to its young.
  • (paleontology) A vertebrate with three bones in the inner ear and one in the jaw.

    • Hyponyms

    * See also

    Derived terms

    * mammalian * mammality * mammalogy

    Related terms

    * mammarial * mammary (-)

    undefined

    English

    Adjective

    (wikipedia undefined) (-)
  • Lacking a definition or value.
  • (mathematics, computing) That does not have a meaning and is thus not assigned an interpretation.
    • The result of division by zero is undefined .

    Antonyms

    * defined