combining form. variants: or tetr- Definition of tetra- (Entry 2 of 2) 1 : four : having four : having four parts tetravalent. 2 : containing four atoms or groups (of a specified kind) tetrachloride.

Why does Tetra mean 4?

Tetra- ultimately comes from the Greek téttares, meaning “four.” The name of the classic video game Tetris is based in part on this Greek root. Find out the rest of the story of how Tetris got its name here. The Latin word for “four” is quattor, source of the combining forms quadr-, quadra-, quadri-, and quadru-.

Why is Tetra used instead of quad?

The difference is in the derivation of the words. The word “Quadri” means four in Latin; the word “Plegia” means paralysis in Greek. ... The Greek word for four is “Tetra.” Combine that with “plegia” and you have a word with Greek roots for both halves.

What does Tetra mean in shapes?

Tetra' means four, and the tetrahedron has four sides. If you were going to be very pedantic, you could describe a cube as a hexahedron, but people tend not to! The mathematical word for a solid shape like these is a polyhedron (poly means many).

Does hexa mean 6?

Hexa- is a combining form used like a prefix meaning “six.” It is used in a great many scientific and other technical terms.

Single Channel vs Dual Channel vs Quad Channel Memory (2020) [Simple Guide]

What is hexahydrate?

: a chemical compound with six molecules of water.

What does prefix milli mean?

In the SI, designations of multiples and subdivision of any unit may be arrived at by combining with the name of the unit the prefixes deka, hecto, and kilo meaning, respectively, 10, 100, and 1000, and deci, centi, and milli, meaning, respectively, one-tenth, one-hundredth, and one-thousandth.

Is Tetra 4 a chemical?

When naming molecular compounds prefixes are used to dictate the number of a given element present in the compound. ” mono-” indicates one, “di-” indicates two, “tri-” is three, “tetra-” is four, “penta-” is five, and “hexa-” is six, “hepta-” is seven, “octo-” is eight, “nona-” is nine, and “deca” is ten.

What words have Tetra in them?

• tetracaine.
• tetrazzini.
• tetrachord.
• tetrameter.
• tetraploid.
• tetraspore.
• tetrarchic.
• tetrameric.

Is quad a prefix?

-quad-, root. The root -quad- comes from Latin, where it has the meaning "four, fourth." This meaning is found in such words as: quad, quadrangle, quadrant, quadruped, quadruplet.

What do Tetris mean?

The name Tetris (coined by Pajitnov) derives in part from the Greek prefix tetra-, meaning "four," a reference to the fact that each block consists of an arrangement of four adjoining cubes (known among gamers as tetrominos).

What is Quad short for?

Quad is an abbreviation, most commonly short for quadrangle, a kind of four-sided courtyard usually defined by a large lawn and surrounded by buildings. Another kind of quad — also an abbreviation — is the large muscle in the top of your thigh, more formally known as a quadriceps muscle.

What does Petra mean?

Petra is a feminine given name. It is a feminine form of Peter, which is derived from the Greek word "πέτρα" (pronounced [ˈpetra]) meaning "stone, rock".

Why are Tetras called tetras?

It is short for Tetragonopterus, a genus name formerly applied to many of these fish, which is Greek for "square-finned" (literally, four-sided-wing). Because of the popularity of tetras in the fishkeeping hobby, many unrelated fish are commonly known as tetras, including species from different families.

What's after tetra?

Numeric prefixes (mono, di, tri, tetra, penta, hexa, hepta, octa, nona, deca)

Is Hepta a 7?

Hepta- is a combining form used like a prefix meaning “seven.” It is used in a number of scientific and other technical terms.

What does the prefix Nona mean?

Nona- is a combining form used like a prefix meaning “nine” or “ninth.” It is used in a number of scientific and other technical terms.

Is Mono a number?

Mono is defined as one or alone.

What does prefix nano mean?

The term “nano” comes from ancient Greek and means “dwarf” (nános = dwarf). ... Used as a prefix, “nano” denotes 10-9, just as “kilo” denotes 103 and “milli” 10-3. A nanometer is therefore equal to a billionth of a meter i.e. 0.000000001 m.

What does prefix centi mean?

English Language Learners Definition of centi-

: hundred. : one hundredth part of something. centi- prefix.

What is prefix mega?

Mega- is a combining form used like a prefix meaning “large, great, grand, abnormally large.” It is used in many scientific and medical terms. In science, mega- is specifically used as a prefix in units of measure equaling a factor of “one million.” It's abbreviation is M. So, a megawatt (MW) is one million watts.

What does the word sextuplet mean?

1 : a combination of six of a kind. 2 : one of six offspring produced in the same pregnancy. 3 : a group of six equal musical notes performed in the time ordinarily given to four of the same value.

What is meant by the term anhydrous?

: free from water and especially water of crystallization.