You might have heard that yellow or green mucus is a clear sign that you have an infection, but despite that common misperception, the yellow or green hue isn't due to bacteria. When you have a cold, your immune system sends white blood cells called neutrophils rushing to the area.These cells contain a greenish-colored enzyme, and in large numbers they can turn the mucus the same color. But you can have perfectly clear mucus and have a terrible ear and sinus infection , Kao says.If you do have an infection, you'll likely also have other symptoms, such as congestion, fever, and pressure in your face, overlying the sinuses, Johns says.1 | 2 | 3 | 4. Continue reading below...ut you can have perfectly clear mucus and have a terrible ear and sinus infection , Kao says. If you do have an infection, you'll likely also have other symptoms, such as congestion, fever, and pressure in your face, overlying the sinuses, Johns says. 1 | 2 | 3 | 4. Continue reading below...
1. mutt-an inferior dog or one of mixed breed. cur, mongrel. Canis familiaris, dog, domestic dog-a member of the genus Canis (probably descended from the common wolf) that has been domesticated by man since prehistoric times; occurs in many breeds; the dog barked all night.
Definition of Rett syndrome. Rett syndrome: An X-linked dominant neurological disorder that affects girls only and is one of the most common causes of mental retardation in females.irls with the syndrome show normal development during the first 6-18 months of life followed first by a period of stagnation and then by rapid regression in motor and language skills. The hallmark of Rett syndrome is the loss of purposeful hand use and its replacement with stereotyped hand-wringing.