2. yarn-a fine cord of twisted fibers (of cotton or silk or wool or nylon etc.) used in sewing and weaving. thread. cord-a line made of twisted fibers or threads; the bundle was tied with a cord. cotton-thread made of cotton fibers. dental floss, floss-a soft thread for cleaning the spaces between the teeth.arn. 1. thread made of natural or synthetic fibers and used for knitting and weaving. 2. a continuous strand or thread made from glass, metal, plastic, etc.
The five blood pressure ranges as recognized by the American Heart Association are: 1  Normal blood pressure. Congratulations on having blood pressure numbers that are within the normal (optimal) range of less than 120/80 mm Hg. 2  Prehypertension (early stage high blood pressure)
The second number, called diastolic blood pressure, is the pressure when your heart fills with blood. The safest range, often called normal blood pressure, is a systolic blood pressure of less than 120 and a diastolic blood pressure of less than 80. This is stated as 120/80.he second number, called diastolic blood pressure, is the pressure when your heart fills with blood. The safest range, often called normal blood pressure, is a systolic blood pressure of less than 120 and a diastolic blood pressure of less than 80. This is stated as 120/80.