surface asperity

  • 1Asperity — is defined as unevenness of surface, roughness, ruggedness (OED). Flat surfaces, even those polished to a mirror finish, are not truly flat on an atomic scale. They are rough, with sharp, rough or rugged outgrowth, termed asperities.When two… …

    Wikipedia

  • 2Asperity — As*per i*ty, n.; pl. {Asperities}. [L. asperitas, fr. asper rough: cf. F. asp[ e]rit[ e].] 1. Roughness of surface; unevenness; opposed to {smoothness}. The asperities of dry bodies. Boyle. [1913 Webster] 2. Roughness or harshness of sound; that… …

    The Collaborative International Dictionary of English

  • 3asperity — ► NOUN (pl. asperities) 1) harshness of tone or manner. 2) a rough edge on a surface. ORIGIN Latin asperitas, from asper rough …

    English terms dictionary

  • 4asperity — [ə sper′ə tē] n. pl. asperities [ME & OFr asprete < L asperitas, roughness < asper, rough < IE * apo spero , repellent < base * apo , away + * sper , to flick away, push] 1. roughness or harshness, as of surface, sound, weather, etc.… …

    English World dictionary

  • 5asperity — noun (plural ties) Etymology: Middle English asprete, from Anglo French aspreté, from aspre rough, from Latin asper, from Old Latin *absperos, from ab ab + speros; akin to Sanskrit apasphura repelling, Latin spernere to spurn more at spurn Date:… …

    New Collegiate Dictionary

  • 6asperity — /euh sper i tee/, n., pl. asperities. 1. harshness or sharpness of tone, temper, or manner; severity; acrimony: The cause of her anger did not warrant such asperity. 2. hardship; difficulty; rigor: the asperities of polar weather. 3. roughness of …

    Universalium

  • 7asperity — n.; pl. ties [L. asperare, to roughen] 1. Roughness of surface. 2. (ARTHROPODA: Insecta) Spinelike structures arranged in rows or confined to specific areas; sculpturings or dotlike elevations …

    Dictionary of invertebrate zoology

  • 8asperity — as•per•i•ty [[t]əˈspɛr ɪ ti[/t]] 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 • Etymology: 1200–50; < AF, OF …

    From formal English to slang

  • 9Asperity Noise — F/A/V (Hiss) Noise that is caused by minute imperfections in the surface of a recording medium (tape). (Sound) …

    Audio and video glossary

  • 10asperity — /æsˈpɛrəti / (say as peruhtee), /əs / (say uhs ) noun (plural asperities) 1. roughness or sharpness of temper; severity; acrimony. 2. hardship; difficulty; rigour. 3. roughness of surface; unevenness. 4. something rough or harsh. {Latin asperitas …