Vandervert (1980/1988) described in scientific detail a simple, every day illustration of an operational definition in terms of making a cake (i.e., its recipe is an operational definition used in a specialized laboratory known as the household kitchen).andervert (1980/1988) described in scientific detail a simple, every day illustration of an operational definition in terms of making a cake (i.e., its recipe is an operational definition used in a specialized laboratory known as the household kitchen).
In addition, a swollen tongue can be caused by: 1  Hormonal disorders such as acromegaly. 2  Congenital disorders such as Beckwith Wiedemann syndrome. 3  Genetic disorders such as Down syndrome and hereditary angioedema. 4  Hypothyroidism, an underactive thyroid. 5  Poor vitamin B12 absorption. 6  Pituitary gland disorder.
If you have an allergy to a certain food you ate, then it is possible the main symptom you feel is tongue swelling. Other causes of tongue swelling are more rare. For example a deficiency in vitamin B12 can cause Glossitis which can result in a swollen, often red tongue. This does not usually happen overnight. Only your doctor can determine the cause of you tongue swelling. Good luck.