X-chromosome, X-radiation, X-ray, X-ray xantophyll, X-rays, xaser, xenobiotic, xenogenous, xenograft, xenoparasite, xerasium, xeric, xerobole, xerogeophyte, xerohalophyte, xerohytium, xeromorph, xerophile, xerophobous, xerophyte, xerophytism, xeroplastic, xeropolum, xerosere, xerotherm, xylem, xylium, xylol, xylophilous, xylophyte - English-Kazakh Ecological Dictionary - Казахские словари