|High-density polyethylene (HDPE) or polyethylene high-density (PEHD)|
High-density polyethylene (HDPE) or polyethylene high-density (PEHD) is a polyethylene thermoplastic made from petroleum.
|V (Vinyl) or PVC|
Polyvinyl chloride, commonly abbreviated PVC, is the third-most widely produced plastic, after polyethylene and polypropylene.
|LDPE (low density polyethylene)|
Low-density polyethylene (LDPE) is a thermoplastic made from the monomer ethylene.
Polypropylene (PP), also known as polypropene, is a thermoplastic polymer used in a wide variety of applications including packaging and labeling, textiles (e.g., ropes, thermal underwear and carpets…
Polystyrene (PS) (pron.: /ˌpɒliˈstaɪriːn/) is a synthetic aromatic polymer made from the monomer styrene, a liquid petrochemical.
Other plastics, such as acrylic, nylon, polycarbonate, and polylactic acid (a bioplastic), and multilayer combinations of different plastics.
0° angle/two or more planets in the same sign A circle with a line implying two objects are in the same place (also, the starting point of an angle)
Denotes the new moon or a soli-lunar arc in the range 0°-45°.
Eris, minor-planet designation 136199 Eris, is the most massive known dwarf planet in the Solar System and the ninth most massive body known to orbit the Sun directly.
The Christian cross, seen as a representation of the instrument of the crucifixion of Jesus Christ, is the best-known religious symbol of Christianity.
|Saint Patricke's Saltire or Saint Patrick's Cross|
Saint Patrick's Saltire or Saint Patrick's Cross is a red saltire (X-shaped cross) on a white field, used to represent the island of Ireland or Saint Patrick, the patron saint of Ireland. In heraldic…
|Lotus Carrying Namam|
The symbol of the Ayyavazhi is a lotus carrying a flame-shaped white 'Namam'. The lotus represents the 1,008-petalled Sahasrara (in Tamil, Ladam) and the Namam represents the Aanma Jyothi or atman, s…
Labrys (λάβρυς in Greek, lábrys) is the term for a symmetrical doubleheaded axe originally from Crete in Greece, one of the oldest symbols of Greek civilization; to the Romans, it was known as a bipe…
|Alpha and Omega|
Alpha and Omega, alpha (α or Α) and omega (ω or Ω), are the first and the last letters of the Greek alphabet and are an appellation of Christ or of God in the Book of Revelation. These couple of lett…
The Happy Human is an icon and the official symbol of the International Humanist and Ethical Union (IHEU), a world body of Humanist organizations, and has been adopted by many Humanist organizations …
|Square and Compasses|
The Square and Compasses (or, more correctly, a square and a set of compasses joined together) is the single most identifiable symbol of Freemasonry. Both the square and compasses are architect's too…
A capacitor (originally known as condenser) is a passive two-terminal electrical component used to store energy in an electric field.
A variable capacitor is a capacitor whose capacitance may be intentionally and repeatedly changed mechanically or electronically.
Square brackets—also called crotchets or simply brackets (US)—are often used to insert explanatory material or to mark where a [word or] passage was omitted from an original material by someone other…
|Braces or Curly Brackets|
Curly brackets – also properly called braces in the US – are used in specialized ways in poetry and music (to mark repeats or joined lines).
Parentheses (/pəˈrɛnθɨsiːz/) (singular, parenthesis (/pəˈrɛnθɨsɨs/)) (also called simply brackets, or round brackets, curved brackets, oval brackets, or, colloquially, parens) contain material that c…
The colon is a punctuation mark consisting of two equally sized dots centered on the same vertical line. In Unicode, it is encoded at U+003A : colon (HTML: :).
The exclamation mark or exclamation point is a punctuation mark usually used after an interjection or exclamation to indicate strong feelings or high volume (shouting), and often marks the end of a s…
Guillemets (pron.: /ˈɡɪləmɛt/, or /ɡiːəˈmeɪ/, French: [ɡijmɛ]), also called angle quotes or French quotation marks, are polylines, pointed as if arrows (« or »), sometimes forming a complementary set…