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Viperine vs Piperine - What's the difference?

viperine | piperine |

As an adjective viperine

is of or relating to a viper or vipers; resembling a viper.

As a noun piperine is

the alkaloid responsible for the pungency of black pepper.

viperine

English

Adjective

(en adjective)
  • Of or relating to a viper or vipers; resembling a viper.
    • (Webster 1913) ----

    piperine

    English

    Noun

    (wikipedia piperine) (-)
  • (organic compound) The alkaloid responsible for the pungency of black pepper