Definition of casual for Students. 1  1 : happening unexpectedly or by chance : not planned or foreseen a casual meeting. 2  2 : occurring without regularity : occasional casual visits. 3  3 : showing or feeling little concern : nonchalant This is awful!  4 : meant for informal use Wear casual clothing for the tour.
Fungemia or fungaemia is the presence of fungi or yeasts in the blood . The most common type, also known as candidemia, candedemia, or systemic candidiasis , is caused by Candida species, but infections by other fungi, including Saccharomyces , Aspergillus and Cryptococcus , are also called fungemia.
Causes of hypothyroidism include: 1  Hashimoto's thyroiditis: In this autoimmune disorder, the body attacks thyroid tissue. 2  The tissue eventually dies and stops producing hormones. 3  Removal of the thyroid gland: The thyroid may have been surgically removed or chemically destroyed.he most common thyroid problems involve abnormal production of thyroid hormones. Too much thyroid hormone results in a condition known as hyperthyroidism.