crunch, scranch[obs3], crumble, disintegrate; attenuate &c. 195. 
     Adj. powdery, pulverulent[obs3], granular, mealy, floury, farinaceous,
branny[obs3], furfuraceous[obs3], flocculent, dusty, sandy, sabulous[obs3], psammous[obs3]; arenose[obs3], arenarious[obs3], arenaceous[obs3]; gritty, efflorescent, impalpable; lentiginous[obs3], lepidote[obs3], sabuline[obs3]; sporaceous[obs3], sporous[obs3].
     pulverizable; friable, crumbly, shivery; pulverized &c. v.;
attrite[obs3]; in pieces.

     #331.  Friction. —­ N. friction, attrition; rubbing, abrasion, scraping
&c. v.; confrication|, detrition, contrition|, affriction[obs3], abrasion, arrosion|, limature|, frication[obs3], rub; elbow grease; rosin; massage; roughness &c. 256.
     rolling friction, sliding friction, starting friction. 
     V. rub, scratch, scrape, scrub, slide, fray, rasp, graze, curry,
scour, polish, rub out, wear down, gnaw; file, grind &c. (reduce to powder) 330.
     set one’s teeth on edge; rosin. 
     Adj. anatriptic[obs3]; attrite[obs3].

     #332. [Absence of friction.  Prevention of friction.] Lubrication. —­
N. smoothness &c. 255; unctuousness &c. 355.
     lubrication, lubrification[obs3]; anointment; oiling &c. v.
     synovia[Anat]; glycerine, oil, lubricating oil, grease &c. 356;
saliva; lather.
     teflon. 
     V. lubricate, lubricitate|; oil, grease, lather, soap; wax. 
     Adj. lubricated &c. v.; lubricous.

% 2.  FLUID MATTER Fluids in General %

     #333.  Fluidity. —­ N. fluidity, liquidity; liquidness &c. adj[obs3].;
gaseity &c. 334[obs3].
     fluid, inelastic fluid; liquid, liquor; lymph, humor, juice, sap,
serum, blood, serosity[obs3], gravy, rheum, ichor[obs3], sanies[obs3]; chyle[Med].
     solubility, solubleness[obs3].
     [Science of liquids at rest] hydrology, hydrostatics, hydrodynamics. 
     V. be fluid &c. adj.; flow &c. (water in motion) 348; liquefy, melt,
condense &c. 335. 
     Adj. liquid, fluid, serous, juicy, succulent, sappy; ichorous[obs3];
fluent &c. (flowing) 348.
     liquefied &c. 335; uncongealed; soluble.

     #334.  Gaseity. —­ N. gaseity[obs3]; vaporousness &c. adj.; flatulence,
flatulency; volatility; aeration, aerification.
     elastic fluid, gas, air, vapor, ether, steam, essence, fume, reek,
effluvium, flatus; cloud &c. 353; ammonia, ammoniacal gas[obs3]; volatile alkali; vacuum, partial vacuum.
     [Science of elastic fluids] pneumatics, pneumatostatics[obs3];
aerostatics[obs3], aerodynamics.
     gasmeter[obs3], gasometer[obs3]; air bladder, swimming bladder, sound
(of a fish). 
     V. vaporize, evaporate, evanesce, gasify, emit vapor &c. 336; diffuse. 
     Adj. gaseous, aeriform[obs3], ethereal, aerial, airy, vaporous,
volatile, evaporable[obs3], flatulent.

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