<p><strong>Noun</strong></p><ul><li>A recurring subject, theme, idea, etc., especially in a literary, artistic, or musical work.</li><li>A distinctive and recurring form, shape, figure, etc., in a design, as in a painting or on wallpaper.</li><li>A dominant idea or feature.</li><li>In biochemistry, a distinct pattern of amino acids in a function-specific protein sequence.</li></ul>