What does PT stand for?

Phase Transition

The transformation of a system from one phase to another. A phase transition is characterized by a significant change in one or more physical property. Examples: freezing of a liquid into a solid, vaporization of a liquid into a gas.

Pheasant Tail

Phosphene Thresholds

Phosphene Threshold

Phosphinothricin

Phos Tekno

Photonic Tools

Photon Therapy

Phototherapy

Treatment with light. For example, a newborn with jaundice may be put under special lights to help reduce the amount of bilirubin pigment in the skin.

Photophobia

Photophobia is a symptom of abnormal intolerance to visual perception of light. As a medical symptom, photophobia is not a morbid fear or phobia, but an experience of discomfort or pain to the eyes due to light exposure or by presence of actual physical sensitivity of the eyes, though the term is sometimes additionally applied to abnormal or irrational fear of light such as heliophobia.