What's the difference between powder and rub?

Powder


Definition:

  • (n.) The fine particles to which any dry substance is reduced by pounding, grinding, or triturating, or into which it falls by decay; dust.
  • (n.) An explosive mixture used in gunnery, blasting, etc.; gunpowder. See Gunpowder.
  • (v. t.) To reduce to fine particles; to pound, grind, or rub into a powder; to comminute; to pulverize; to triturate.
  • (v. t.) To sprinkle with powder, or as with powder; to be sprinkle; as, to powder the hair.
  • (v. t.) To sprinkle with salt; to corn, as meat.
  • (v. i.) To be reduced to powder; to become like powder; as, some salts powder easily.
  • (v. i.) To use powder on the hair or skin; as, she paints and powders.

Example Sentences:

  • (1) Sift the cocoa powder over the top and lightly but thoroughly fold it in with the metal spoon.
  • (2) Thus, enhancers are required to obtain significant nasal absorption of glucagon and calcitonin and powders and spray solutions did not differ in terms of systemic availability.
  • (3) On the other hand, immunofluorescence in anterior pituitary cells was faint and detected in only 2 of 28 patients with Graves' disease (7.1%) after absorption of their sera with rat liver aceton powder.
  • (4) High intensity ultrasound also enhances the heterogeneous catalysis of alkene hydrogenation by Ni powders.
  • (5) Rat heart acid acetone powder was subjected to ion exchange chromatography on CM-cellulose.
  • (6) The conformational similarity between tubules, sheets, and the dry powder is corroborated by calorimetry, which reveals a cooling exotherm at the same temperature where tubules form upon cooling hydrated sheets.
  • (7) Eight patients were seen within 15 minutes of intranasal self-administration of large amounts of pure D-lysergic acid diethylamide (LSD) tartrate powder.
  • (8) As soon as the component with the lower mechanical stability is percolating the powder system, tablet hardness is controlled entirely by this component.
  • (9) During powder compaction on a Manesty Betapress, peak pressures, Pmax, are reached before the punches are vertically aligned with the centres of the upper and lower compression roll support pins.
  • (10) Plasma cholesterol concentrations in F1b-generation rats were elevated, but cocoa powder did not affect this parameter consistently across multiple generations.
  • (11) In a trial with rams, application of polyethylene powder (PE) as a marker for determination of feed passage rate through the digestive tract and three methods of its determination in feed and feces were tested.
  • (12) Physical and technological parameters of carfecillin powder and carfecillin with auxiliary substances in the form of the powder mixture and granulate were studied comparatively.
  • (13) Treatment animals had the anastomoses and graft sealed with a suspension of N-butyl-2-cyanoacrylate and 1.2 g tobramycin powder (antibiotic glue, ANGL) after contamination.
  • (14) A suspension of 0.6 mg polyvinyl alcohol foam powder per milliliter of normal saline was found to be optimum.
  • (15) The allogenic implantation of demineralized bone powder induces the formation of new bone tissue or osteoneogenesis.
  • (16) The ICSAs were significantly absorbed with mouse islet cells but hardly absorbed with spleen cells or liver powder.
  • (17) Thus, with elution by either ATP or pyrophosphate, actin has been purified in one step from extracts of acetone-dried muscle powder.
  • (18) An analysis of variance of saliva levels and urinary excretion as well as an analysis of variance of peak concentration and the area under the curve from 0 to 24 hr for the saliva levels showed no significant difference between the powder and products, but a significant difference between subjects.
  • (19) In contact toxicity tests with water dispersible powder deposits on plywood, propoxur was highly active initially but lost its effectiveness after only a few weeks, whereas tetrachlorvinphos was less active initially but more persistent.
  • (20) Completely demineralized root powder was subjected to solutions of varying pH and ionic strength: (a) 0.1 M acetic acid, pH 4.0, (b) 0.1 M acetic acid + 0.15 M KCl, pH 4.0, (c) 0.1 M Hepes, pH 7.0 or to (d) 0.1 M Hepes + 0.15 M KCl, pH 7.0 at 37 degrees C. The surfaces of intact root specimens were exposed to 0.1 M acetic acid, pH 4.0 (which resulted in erosive lesions) or to 0.1 M lactic acid, 0.2 mM methane hydroxy diphosphonate, pH 5.0 (which produced subsurface lesions) at 37 degrees C. After incubation, the extracts were analysed for soluble collagen and the insoluble matrices were treated with trypsin at 15 degrees C to determine the denatured collagen.

Rub


Definition:

  • (v. t.) To subject (a body) to the action of something moving over its surface with pressure and friction, especially to the action of something moving back and forth; as, to rub the flesh with the hand; to rub wood with sandpaper.
  • (v. t.) To move over the surface of (a body) with pressure and friction; to graze; to chafe; as, the boat rubs the ground.
  • (v. t.) To cause (a body) to move with pressure and friction along a surface; as, to rub the hand over the body.
  • (v. t.) To spread a substance thinly over; to smear.
  • (v. t.) To scour; to burnish; to polish; to brighten; to cleanse; -- often with up or over; as, to rub up silver.
  • (v. t.) To hinder; to cross; to thwart.
  • (v. i.) To move along the surface of a body with pressure; to grate; as, a wheel rubs against the gatepost.
  • (v. i.) To fret; to chafe; as, to rub upon a sore.
  • (v. i.) To move or pass with difficulty; as, to rub through woods, as huntsmen; to rub through the world.
  • (n.) The act of rubbing; friction.
  • (n.) That which rubs; that which tends to hinder or obstruct motion or progress; hindrance; obstruction, an impediment; especially, a difficulty or obstruction hard to overcome; a pinch.
  • (n.) Inequality of surface, as of the ground in the game of bowls; unevenness.
  • (n.) Something grating to the feelings; sarcasm; joke; as, a hard rub.
  • (n.) Imperfection; failing; fault.
  • (n.) A chance.
  • (n.) A stone, commonly flat, used to sharpen cutting tools; a whetstone; -- called also rubstone.

Example Sentences:

  • (1) Neither acetylcholine nor leukotriene D4 altered tone of arterial rings after the endothelium had been intentionally disrupted by rubbing with a cotton-tipped applicator.
  • (2) Rubbed rings, but not intact ones, contracted when Ca2+ was added to a previously Ca2+-free medium containing angiotensin II or adrenaline.
  • (3) Immediately after eye rubbing the conjunctival epithelium was histologically disrupted and 50% of the mast cells showed evidence of degranulation.
  • (4) But this morning's right-of-centre national papers were determined to rub his nose in the dirt.
  • (5) Long-term rubbing of a pressure stocking and splint was believed to be responsible for breakdown in the graft of the patient who had a hypertrophic scar.
  • (6) I think we all pine for the good old days when politicians actually wrote bills, and bills actually became laws and can I rub your arms a little?
  • (7) The specific endonuclease Bam HI from Bacillus amyloliquefaciens (RUB 500) has been purified to apparent homogeneity.
  • (8) Ultz, who is also a well-known stage designer, is the only white person in the company - something the play rubs his nose in.
  • (9) Who was the asshole who threw the bottle?” Matt asked, rubbing his sore spot.
  • (10) The fibromas were transmitted by intradermal and subcutaneous inoculation and by rubbing the virus preparation into tattoo sites.
  • (11) With advancing age, the ATP-induced relaxation in the rubbed rings decreased and was abolished.
  • (12) In the Diagnostic and Statistical Manual of Mental Disorders, the American Psychiatric Association describes “frotteurism” as “recurrent, intense, or arousing sexual urges or fantasies, that involve touching and rubbing against a nonconsenting person”.
  • (13) Rubbed (endothelium-denuded) ring preparations at the age of 4-6 weeks showed a dose-dependent relaxation similar to that of the unrubbed rings.
  • (14) We found positive reactions in the prick test and rubbing test to the scales of the lizard Egernia cunninghami and others, which the patient kept as house-pets at this time or earlier.
  • (15) On the contrary, not all country dwellers are Tories; and fat cats, often Tory, will be rubbing their hands at the thought of asset-stripping another national resource.
  • (16) Ten rubs occurred in patients with pericardial effusion, five of whom had tamponade.
  • (17) But this will only rub more salt into the wounds at home.
  • (18) During each scratch cycle, the monoarticular knee extensor muscle is active when the limb rubs against the stimulated site, and there is rhythmic alternation between hip protractor and hip retractor muscle activity (Robertson et al., 1985).
  • (19) Oscar Pistorius rubs his face as he sits in the dock during his ongoing murder trial at a packed high court in Pretoria on May 5.
  • (20) Did it actually happen, that run of singles so strange and yet so strong that they rose to the higher reaches of the hit parade, rubbing shoulders with Showaddywaddy and the Nolans on Top of the Pops?

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