|Project Mercury Symbol|
Project Mercury was the first human spaceflight program of the United States, running from 1958 through 1963. An early highlight of the Space Race, its goal was to put a man into Earth orbit and retu…
Projection was the ultimate goal of Western alchemy. Once the Philosopher's stone or powder of projection had been created, the process of projection would be used to transmute a lesser substance int…
|Promethium Dragon Egg|
Icon used to indicate a Promethium Dragon egg in the game DragonVale.
|Proper Subset (also called a strict subset)|
A proper subset is subset that has few elements than the set, i.e., the subset can not be the original set.
|Proper Superset (also called strict superset)|
A proper superset is a superset that has more elements than a set.
Specifies that a value is proportional to another value
Means a statement is provable
Psi is the 23rd letter of the Greek alphabet and has a numeric value of 700. In both Classical and Modern Greek, the letter indicates the combination /ps/ (as in English word "lapse"). For Greek lo…
Psi is the 23rd letter of the Greek alphabet and has a numeric value of 700. In both Classical and Modern Greek, the letter indicates the combination /ps/ (as in English word "lapse")
|Psychiatry - Psychology|
Psi (uppercase Ψ, lowercase ψ; Greek
A form of psychotherapy in which patients act out events from their past.
|Public health center|
Japanese map symbol for public health center
An 18th century chemical symbol used to indicate the process of pulverizing ("pulverisare") and the result of that process, powder ("pulvis")
The sign for purification, or "purificatio", combines the symbols for 'water' (squiggly lines) and 'vessal' (bowl shape).
|Purification (alternate) or setting (alchemy)|
An alchemical symbol that represents both purification and setting.
|Purify by burning|
In alchemical practices, this symbol represents a purification process.
|Purple & Violet (colors)|
When it comes to colors, “purple” and “violet” are sometimes used interchangeably. Although technically different colors, this article will cover the symbolism of both, differentiating where necessar…
|Purple and red awareness ribbon|
Associated with chronic migraine awareness (newly established by some migraine support groups).
|Purple awareness ribbon|
The purple awareness ribbon represents numerous causes:
|Purple- and blue-striped awareness ribbon|
Represents mixed connective tissue disease (MCTD).
Chinese characters representing "Pútáo", which translates as 'Grapes' (can also indicate the singular 'Grape').