<p><strong>Noun:</strong></p><ul><li><strong>Plural</strong>: stomata, stomas</li><li><strong>Definition</strong>:<ul><li>Any of various small apertures, especially one of the minute orifices or slits in the epidermis of leaves, stems, etc., through which gases are exchanged (Botany).</li><li>A mouth or ingestive opening, especially when in the form of a small or simple aperture (Zoology).</li><li>An artificial opening between two hollow organs or between one hollow organ and the outside of the body, constructed to permit the passage of body fluids or waste products (Medicine/Medical).</li></ul></li></ul>