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.
Your tongue can swell for a number of reasons, most commonly due to medications, allergies, and underlying medical problems. The swelling may be referred to as angioedema, which means the swelling occurs in the deeper layers of the skin.