prot-

Usage

• protagonist

  A protagonist is the main character in a play, novel, or real event such as a battle or struggle.

• protean

  Something or someone that is protean is adaptable, variable, or changeable in nature.

• protocol

  Protocol is the rules of conduct or proper behavior that a social situation demands.

• protein

  any of a large group of nitrogenous organic compounds that are essential constituents of living cells

• proton

  a stable particle with positive charge equal to the negative charge of an electron

• prototype

  a standard or typical example

• protozoa

  in some classifications considered a superphylum or a subkingdom