different between twinning vs striation

English

Verb

twinning

1. present participle of twin

Noun

twinning (plural twinnings)

1. action of the verb to twin
2. giving birth to twins
3. the pairing of similar objects (such as towns)
4. (crystallography) the formation of twin crystals
5. (transport) the conversion of a road into a dual carriageway

Derived terms

• crystal twinning
• town twinning

Adjective

twinning (not comparable)

1. biparous

See also

• gemination
• twining

English

Etymology

striate +? -ion

Noun

striation (countable and uncountable, plural striations)

1. (countable, mineralogy) One of a number of parallel grooves and ridges in a rock or rocky deposit, formed by repeated twinning or cleaving of crystals.
2. (countable, geomorphology) One of a number of parallel scratch lines in rock outcrops, formed when glaciers dragged rocks across the landscape.

   • The energy raised the temperature of the snow a couple of degrees, and the friction carved striations high in the icy sides of the canyon walls.

3. The action of marking with a stria.
4. The result of being marked with a stria.
5. (roofing) a parallel series of small grooves, channels, or impressions typically within a metal roof panel used to help reduce the potential for oil-canning.

Translations

References

• striation in The Century Dictionary, New York, N.Y.: The Century Co., 1911.
• striation at OneLook Dictionary Search

Anagrams

• tritonias