different between smooth vs planar

English

Alternative forms

• smeeth (dialectal)
• (verb): smoothe

Etymology

From Middle English smoothe, smothe, smethe, from Old English sm?þ and Old English sm?þe, both from Proto-Germanic *smanþaz, *smanþiz, of unknown origin. Cognate with Scots smuith (“smooth”), Low German smood and smödig (“smooth, malleable, ductile”), Dutch smeuïg (“smooth”) (from earlier smeudig).

Pronunciation

• IPA^(key): /smu?ð/
• Rhymes: -u?ð

Adjective

smooth (comparative smoother, superlative smoothest)

1. Having a texture that lacks friction. Not rough.
   • 1695, John Dryden (translator), Observations on the Art of Painting by Charles Alphonse du Fresnoy

     The outlines must be smooth, […] imperceptible to the touch, and even, without eminence or cavities.

   • “A tight little craft,” was Austin’s invariable comment on the matron; and she looked it, always trim and trig and smooth of surface like a converted yacht cleared for action. ¶ Near her wandered her husband, orientally bland, invariably affable, […].
2. Without difficulty, problems, or unexpected consequences or incidents.
3. Bland; glib.

   • This smooth discourse and mild behavior oft / Conceal a traitor.
4. Flowing or uttered without check, obstruction, or hesitation; not harsh; fluent.
   • 1670, John Milton, The History of Britain

     the only smooth poet of those times}}

   • 1713, John Gay, The Fan

     When sage Minerva rose, / From her sweet lips smooth elocution flows.

5. (of a person) Suave; sophisticated.
6. (of an action) Natural; unconstrained.
7. (of a motion) Unbroken.
8. (chiefly of water) Placid, calm.
9. (of an edge) Lacking projections or indentations; not serrated.
10. (of food or drink) Not grainy; having an even texture.
11. (of a beverage) Having a pleasantly rounded flavor; neither rough nor astringent.
12. (mathematics, of a function) Having derivatives of all finite orders at all points within the function’s domain.
13. (mathematics, of a number) That factors completely into small prime numbers.
14. (linguistics, classical studies, of a vowel) Lacking marked aspiration.
15. (of muscles, medicine) Involuntary and non-striated.

Synonyms

• (having a texture lacking friction): even
• (without difficulty or problems): fluid

Antonyms

• rough
• uneven
• bumpy

Derived terms

Translations

Adverb

smooth (comparative smoother, superlative smoothest)

1. Smoothly.

Noun

smooth (plural smooths)

1. Something that is smooth, or that goes smoothly and easily.

   • The smooth of his neck.

   • 1862, William Makepeace Thackeray, The Adventures of Philip

     I think you and I will take the ups and the downs , the roughs and the smooths of this daily existence and conversation
2. A smoothing action.
3. A domestic animal having a smooth coat.
4. A member of an anti-hippie fashion movement in 1970s Britain.
5. (statistics) The analysis obtained through a smoothing procedure.

Translations

Verb

smooth (third-person singular simple present smooths, present participle smoothing, simple past and past participle smoothed)

1. (transitive) To make smooth or even.

   Synonym: smoothen

2. (transitive) To reduce to a particular shape or form by pressure; to press, to flatten.

3. (transitive) To make straightforward or easy.
   • 2007, Beth Kohn, Lonely Planet Venezuela (page 379)

     Caracas can be a tough place but the tremendously good-natured caraqueños smoothed my passage every step of the way.

4. (transitive) To calm or palliate.

   to smooth a person's temper

5. (statistics, image processing, digital audio) To capture important patterns in the data, while leaving out noise.
6. (West Country) To stroke; especially to stroke an animal's fur.

Derived terms

Translations

See also

• smoothing on Wikipedia.Wikipedia

Anagrams

• shtoom

English

Etymology

From Late Latin pl?n?rius (“relating to a plane”), derived from Latin pl?nus (“flat”, “level”), ultimately from Proto-Indo-European *pleh?- (“flat”).

Pronunciation

• (General American) IPA^(key): /?ple?n?/
• (Received Pronunciation) IPA^(key): /?ple?n?/
• Homophones: plainer, planer
• Rhymes: -e?n?(?)

Adjective

planar (comparative more planar, superlative most planar)

1. Of or pertaining to a plane.

   A planar projection of a three-dimensional object is its projection onto a plane.

2. Flat, two-dimensional.
3. (graph theory, of a graph) Able to be embedded in the plane with no edges intersecting.

   A complete graph with more than four nodes is never planar.

4. (transistor chip, semiconductor devices) Having a flat profile, not etched into a mesa.

Derived terms

• antiplanar
• nonplanar
• periplanar
• synplanar

Related terms

• plane
• planate

Translations

German

Pronunciation

• Rhymes: -a???

Adjective

planar (not comparable)

1. planar

Declension

Further reading

• “planar” in Duden online

Norwegian Nynorsk

Noun

planar m

1. indefinite plural of plan

Portuguese

Etymology

(This etymology is missing or incomplete. Please add to it, or discuss it at the Etymology scriptorium.)

Verb

planar (first-person singular present indicative plano, past participle planado)

1. (intransitive) to glide (to fly unpowered)

Conjugation

Related terms

• plano

Spanish

Etymology

From Late Latin planarius (“relating to a plane”), from Latin planum (“plane”).

Adjective

planar (plural planares)

1. planar (relating to a plane)

Swedish

Verb

planar

1. present tense of plana.