asperity

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as·per·i·ty

 (ă-spĕr′ĭ-tē)
n. pl. as·per·i·ties
1.
a. Roughness or harshness, as of surface, sound, or climate: the asperity of northern winters.
b. Severity; rigor.
2. A slight projection from a surface; a point or bump.
3. Harshness of manner; ill temper or irritability.

[Middle English asperite, from Old French asprete, from Latin asperitās, from asper, rough.]

asperity

(æˈspɛrɪtɪ)
n, pl -ties
1. roughness or sharpness of temper
2. roughness or harshness of a surface, sound, taste, etc
3. a condition hard to endure; affliction
4. (General Physics) physics the elastically compressed region of contact between two surfaces caused by the normal force
[C16: from Latin asperitās, from asper rough]

as•per•i•ty

(əˈspɛr ɪ ti)

n., pl. -ties.
1. harshness or sharpness of tone, temper, or manner; severity; acrimony.
2. hardship; difficulty; rigor.
3. roughness of surface; unevenness.
4. something rough or harsh.
[1200–50; < Anglo-French, Old French < Latin asperitās <asper rough]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.asperity - something hard to endureasperity - something hard to endure; "the asperity of northern winters"
difficultness, difficulty - the quality of being difficult; "they agreed about the difficulty of the climb"
sternness - the quality (as of scenery) being grim and gloomy and forbidding; "the sternness of his surroundings made him uncomfortable"
2.asperity - harshness of mannerasperity - harshness of manner      
ill nature - a disagreeable, irritable, or malevolent disposition

asperity

asperity

noun
Something that obstructs progress and requires great effort to overcome:
difficulty, hardship, rigor, vicissitude (often used in plural).
Idioms: a hard nut to crack, a hard row to hoe, heavy sledding.
Translations

asperity

[æsˈperɪtɪ] Naspereza f

asperity

[æˈspɛrɪti] (formal) n (= sharpness) with asperity → sèchement

asperity

nSchroffheit f no pl, → Schärfe f no pl; the asperities of the winter (liter)der raue Winter (geh)

asperity

[æˈspɛrɪtɪ] n (frm) (of manners, voice) → asprezza
References in periodicals archive ?
Additionally the asperities reduce the contact area (or effective radius) between the diamond and aluminum oxide surfaces for particles with size exceeding the pore opening funnel diameter.
Therefore, the interaction of asperities has been extensively studied.
In the perpetual motion of Mouvement however the angular asperities, anticipating Stravinsky, were muted.
When the sliding velocity is low, the pressure in the oil film is unable to support the normal load induced by the chain force and asperities on both surfaces are in direct contact with each other.
The asperities in this study correspond to the microfibers fabricated on the polymer surfaces.
The scrotum content appeared to be stuck to the skin, and the overlying skin was rough with asperities (Figure 1).
In boundary lubrication stage, engagement pressure is together borne by the oil film pressure and the asperity contact of friction pair, and transmitted torque involves the viscous shear torque of oil film and the asperity friction torque of friction pair, and with wet clutch engaging, contact and friction of asperities gradually play a dominant role in the formation of pressure and torque.
STATE OF STATIC STRESS ON THE COSTA RICAN COCOS-CARIBBEAN PLATE INTERFACE: MECHANICAL INTERPRETATION FOR THE ORIGIN OF ASPERITIES ON THE SEISMOGENIC ZONE
To prevent BAI, a variety of other approaches are being developed such as Creating Non-adhesive implant surfaces to repel bacteria, Tissue integrating surfaces, Contact-killing surface, Anti-microbial releasing coatings [3], coating with functional DNase I to prevent biofilm attachment [21], and Length-scale-mediated differential adhesion by generating asperities using PEG [22], use of super paramagnetic iron oxide nanoparticles (SPION) [20], and gold and iron-oxide nanoparticles to disrupt the bacterial biofilm [17].
Friction coefficients change depending on the state of the frictional surface, which is related to the real contact area between the asperities on the two surfaces.
The boundary friction between precision surfaces may cause the so-called "lack of film" when, due to a great number of point contacts on the tops of micro asperities, the boundary lubricant film does not have time to recover while being ruptured.