Chirality
Chirality /kaɪˈrælɪtiː/ is a property of asymmetry important in several branches of science. The word chirality is derived from the Greek, χειρ (kheir), "hand", a familiar chiral object.An object or a...
Chirality (physics)
A chiral phenomenon is one that is not identical to its mirror image (see the article on mathematical chirality). The spin of a particle may be used to define a handedness, or helicity, for that parti...
Chirality (chemistry)
A molecule is considered chiral /ˈkaɪərəl/ if there exists another molecule that is of identical composition, but which is arranged in a non-superposable mirror image. The presence of an asymmetric ca...
Chirality (electromagnetism)
The term chiral /ˈkaɪərəl/ describes an object, especially a molecule, which has or produces a non-superimposeable mirror image of itself. In chemistry, such a molecule is called an enantiomer or is s...
Chirality (mathematics)
In geometry, a figure is chiral (and said to have chirality) if it is not identical to its mirror image, or, more precisely, if it cannot be mapped to its mirror image by rotations and translations al...
Handedness
Handedness is a better (faster or more precise) performance or individual preference for use of a hand. Handedness is not a discrete variable (right or left), but a continuous one that can be express...
Chiral knot
In the mathematical field of knot theory, a chiral knot is a knot that is not equivalent to its mirror image. An oriented knot that is equivalent to its mirror image is an amphichiral knot, also calle...
Handedness of Presidents of the United States
The handedness of presidents of the United States is difficult to establish with any certainty before recent decades. During the 18th and 19th centuries left-handedness was considered a disability and...
List of left-handed boxers
This is a list of southpaw stance boxers. Southpaw is a boxing term that designates the stance where the boxer has his right hand and right foot forward, leading with right jabs, and following with a ...
Right-handedness
Handedness is a better (faster or more precise) performance or individual preference for use of a hand. Handedness is not a discrete variable (right or left), but a continuous one that can be express...
Left-handedness
Handedness is a better (faster or more precise) performance or individual preference for use of a hand. Handedness is not a discrete variable (right or left), but a continuous one that can be express...
Edinburgh Handedness Inventory
The Edinburgh Handedness Inventory is a measurement scale used to assess the dominance of a person's right or left hand in everyday activities, sometime referred to as laterality. The inventory can be...
Thalidomide
Thalidomide (/θəˈlɪdəmaɪd/; from phthalimido-glutarimide, currently sold as Immunoprin, Talidex, Talizer, or Thalomid) is an immunomodulatory drug and the prototype of the thalidomide class of drugs.T...
Sinistral and dextral
Sinistral and dextral are scientific terms that describe chirality (“handedness”) or relative direction in a number of disciplines. The terms are derived from the Latin words for “left” (sinister) and...
Left-handed specialist
In baseball, a left-handed specialist (also known as lefty specialist) is a relief pitcher who throws left-handed and specializes in pitching to left-handed batters, weak right-handed batters, and swi...
Chiral polytope
In mathematics, there are two competing definitions for a chiral polytope. One is that it is a polytope that is chiral (or "enantiomorphic"), meaning that it does not have mirror symmetry. By this def...
Relative direction
The most common relative directions are left, right, forward(s), backward(s), up, and down. No absolute direction corresponds to any of the relative directions. This is a consequence of the translatio...
Laterality
The term laterality refers to the preference most humans show for one side of their body over the other. Examples include left-handedness/right-handedness and left/right-footedness, it may also refer ...
Chemical chirality in popular fiction
Although little was known about chemical chirality in the time of Lewis Carroll, his work Through the Looking-glass contains a prescient reference to the differing biological activities of enantiomeri...
Flatfish
A flatfish is a member of the order Pleuronectiformes of ray-finned demersal fishes, also called the Heterosomata, sometimes classified as a suborder of Perciformes. In many species, both eyes lie on...
Helicity (particle physics)
In particle physics, helicity is the projection of the spin S onto the direction of momentum, ∧p,as the projection of orbital angular momentum along the linear momentum is zero, L∘∧p ...
Airway (aviation)
An airway is a legally defined corridor that connects one specified location to another at a specified altitude, along which an aircraft that meets the requirements of the airway may be flown. Airways...
Double tracking
Double tracking or vocal doubling is an audio recording technique in which a performer sings or plays along with their own prerecorded performance, usually to produce a stronger or "bigger" sound than...
Headlamp
A headlamp is a lamp attached to the front of a vehicle to light the road ahead. While it is common for the term headlight to be used interchangeably in informal discussion, headlamp is the term for ...
Gastropod shell
The gastropod shell is a shell which is part of the body of a gastropod or snail, one kind of mollusc. The gastropod shell is an external skeleton or exoskeleton, which serves not only for muscle atta...
Ambidexterity
Ambidexterity is the state of being equally adept in the use of both left and right appendages (such as the hands). It is one of the most famous varieties of cross-dominance. People that are naturally...
Enantiopure drug
An enantiopure drug is a pharmaceutical that is available in one specific enantiomeric form. Most biological molecules (proteins, sugars, etc.) are present in only one of many chiral forms, so differe...
Double track
A double-track railway usually involves running one track in each direction, compared to a single-track railway where trains in both directions share the same track.
In the earliest days of railw...