<p><strong>Noun</strong></p><ul><li>An act or fact of infecting; state of being infected.</li><li>An infecting with germs of disease, as through the medium of infected insects, air, water, or clothing.</li><li>An infecting agency or influence.</li><li>An infectious disease: Is this infection very dangerous?</li><li>The condition of suffering an infection.</li><li>Corruption of another's opinions, beliefs, moral principles, etc.; moral contamination.</li><li>An influence or impulse passing from one to another and affecting feeling or action.</li><li>Grammar: (in Celtic languages) assimilation in which a vowel is influenced by a following vowel or semivowel; umlaut.</li></ul>