Definition of Twinning

1. Adjective. Producing two offspring at a time.

Exact synonyms: Biparous
Similar to: Multiparous



Definition of Twinning

1. n. The assemblage of two or more crystals, or parts of crystals, in reversed position with reference to each other in accordance with some definite law; also, rarely, in artificial twinning (accomplished for example by pressure), the process by which this reversal is brought about.

Definition of Twinning

1. Verb. (present participle of twin) ¹

2. Noun. action of the verb ''to twin'' ¹

3. Noun. giving birth to twins ¹

4. Noun. the pairing of similar objects (such as towns) ¹

5. Noun. (minerology) the formation of twin crystals ¹

6. Noun. (transport) the conversion of a road into a dual carriageway ¹

7. Adjective. biparous ¹

¹ Source: wiktionary.com

Definition of Twinning

1. the bearing of two children at the same birth [n -S]

Medical Definition of Twinning

1. The assemblage of two or more crystals, or parts of crystals, in reversed position with reference to each other in accordance with some definite law; also, rarely, in artificial twinning (accomplished for example by pressure), the process by which this reversal is brought about. Polysynthetic twinning, repeated twinning of crystal lamellae, as that of the triclinic feldspars. Repeated twinning, twinning of more than two crystals, or parts of crystals. Twinning axis, Twinning plane. See the Note under Twin. Source: Websters Dictionary (01 Mar 1998)

Twinning Pictures

Click the following link to bring up a new window with an automated collection of images related to the term: Twinning Images

Lexicographical Neighbors of Twinning

twinkly
twinkly-eyed
twinks
twinleaf
twinleafs
twinless
twinlike
twinling
twinlings
twinnable
twinned
twinner
twinners
twinnie
twinnies
twinning (current term)
twinnings
twinnite
twins
twinset
twinsets
twinship
twinships
twinspot
twinspots
twinter
twinters
twiny
twip
twips

Literary usage of Twinning

Below you will find example usage of this term as found in modern and/or classical literature:

1. A Text-book of Mineralogy: With an Extended Treatise on Crystallography and by Edward Salisbury Dana (1922)
"448 a 446 447 448 Orthoclase Manebach twin is shown; here the twinning-plane is c(001). Other rarer types of twinning have been noted with orthoclase. ..."

2. A Text-book of Mineralogy: With an Extended Treatise on Crystallography and by Edward Salisbury Dana (1898)
"In chalcopyrite, of the sphenoidal group, twinning with a face of the unit pyramid, ... Other rarer kinds of twinning have also been noted. 379. 380. 381. ..."

3. Engineering Geology: By Heinrich Ries and Thomas L. Watson by Heinrich Ries, Thomas Leonard Watson (1914)
"The plane normal to the twin axis is called the twinning plane, and the plane of ... Many minerals frequently exhibit twinning, and in some it serves as an ..."

4. The Metallography of Steel and Cast Iron by Henry Marion Howe (1916)
"This chapter considers annealing twins primarily, the following one taking up the Neumann bands, and Chapter 24 the mechanism of twinning. 554. ..."

5. Crystallography: An Outline of the Geometrical Properties of Crystals by Thomas Leonard Walker (1914)
"The twinning plane obviously can never have the direction of a plane of symmetry ... This is a general effect of twinning. The normal to the twinning plane ..."

6. Essentials for the Microscopical Determination of Rock-forming Minerals and by Albert Johannsen (1922)
"They may be classified as follows: The twinning is one of the most important characteristics of ... The three most important kinds of twinning are Carlsbad, ..."

7. Elements of Optical Mineralogy: An Introduction to Microscopic Petrography by Newton Horace Winchell, Alexander Newton Winchell (1908)
"The twinning axis is usually a crystallographic axis, or may be a line normal to ... The composition face though usually perpendicular to the twinning axis, ..."

8. The American Geologist by Newton Horace Winchell (1900)
"and related gabbros in Minnesota, Canada, Newfoundland, Xew York, Finland, and Russia. Physical Characters of Labradorite. The albite twinning is very ..."

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