What's the difference between odor and odorless?

Odor


Definition:

  • (n.) Any smell, whether fragrant or offensive; scent; perfume.

Example Sentences:

  • (1) Experiment 3 showed that the color-induced increase in odor intensity is not due to subjects' preexperimental experience with particular color-odor combinations, because the increase occurred with novel ones.
  • (2) Because of the wide range of human nasal anatomic configurations, some people sniff odorants against comparatively high resistances.
  • (3) Superior memory for the word list was found when the odor present during the relearning session was the same one that had been present at the time of initial learning, thereby demonstrating context-dependent memory.
  • (4) Foraging honeybees (Apis mellifera) were trained with 2 successively presented targets differing in color or odor, one of which always contained a 5-microliters drop of 50% sucrose solution and the other, a 5-microliters drop of 20% sucrose solution.
  • (5) A programmable controller manages the olfactometer dilution stage selection, the odor stimulus switch and starts the peripheral devices required by the experiment.
  • (6) For the roof, different odorants produced different activity patterns, which had profiles not simply described as regions of maximal and minimal responsiveness.
  • (7) Hamsters with TNx retained their ability to detect odors, but demonstrated reduced attraction to vaginal odors as compared with unoperated animals.
  • (8) Chemosensory cilia of olfactory receptor neurons contain an adenylate cyclase which is stimulated by high concentrations of odorants.
  • (9) Distal stimuli emanating from the female or pups induce proximity by provoking orientation, attention and arousal; the meaning of these stimuli is largely learned by conditioned associations during the initial executions of the behavior, although odors may have a prepotent influence for some individuals.
  • (10) The cyclic adenosine nucleotide pathway is turned off by kinase A activity, whereas the inositol trisphosphate cascade is terminated by kinase C. The data support the concept that desensitization of odorant responses involves phosphorylation of key elements in the transduction cascade.
  • (11) Like its counterparts from frog and rat, the ciliary enzyme was stimulated by guanine nucleotides, by forskolin, and by a variety of odorants in the presence of GTP.
  • (12) The level of the DA metabolite 3,4-dihydroxyphenylacetic acid (DOPAC) increases only in pups receiving both odor and tactile stimulation and peaks at about 200% of baseline.
  • (13) In Experiment 1, an odor was presented 90 s before, during, or 90 s after a taste to independent groups.
  • (14) Examination of illustrative case reports demonstrates that the qualitative features of the Odorant Confusion Matrix offer additional insights to support etiologic diagnoses of disturbances in sense of smell.
  • (15) At 2.5 L min-1 both groups were able to track the buildup of odor intensity during infusion and its decline after infusion.
  • (16) Experiments 2 and 3 investigated whether desensitized animals could behaviorally detect and discriminate odors.
  • (17) No differences have been observed about aspect, odor, pH and volume of ejaculate.
  • (18) Determining specific ligand-receptor relationships is an extremely challenging task given the diversity of odorants able to be perceived and the potentially large size of the family of receptors.
  • (19) This review discusses the state of knowledge in odor memory within the framework of mainstream memory research.
  • (20) When heart rate is used as the index of conditioning, rat pups younger than 15 days of age do not display an odor-shock association.

Odorless


Definition:

  • (a.) Free from odor.

Example Sentences:

  • (1) Methyl bromide is a nearly odorless, volatile hydrocarbon used as a fumigant in the food industry.
  • (2) This study is undertaken to develop a simplified, rapid method to determine both immediate and potential off odors due to 4-vinyl guaiacol and its odorless precursor, ferulic acid, from a single sample preparation and chromatographic analysis.
  • (3) The dry, odorless, biologically inert specimens are durable and resistant to damage caused by handling.
  • (4) If animals were aroused into activity by the presence of seaweed extract, the time for them to contact a piece of odorless glass fiber paper in the open field was not significantly different than that for a piece of seaweed.
  • (5) DMSO is a clear odorless liquid, inexpensively produced as a by-product of the paper industry.
  • (6) The finished plastinated specimen is dry to the touch, odorless, and nontoxic, yet it maintains its original shape and, in many cases, is reasonably close in color and consistency.
  • (7) They can be found in the workplace, home, and outdoors, and many are unseen and odorless.
  • (8) The study group received a colorless, odorless, predetermined meal three times daily; the meal included cottage cheese, apple sauce, vanilla ice cream, and other selected foods.
  • (9) Regarding controlled evacuation, continence time, and silent gas emission: in Group A, the device permitted controlled evacuations (23.8 percent of patients practicing daily washouts) with silent and odorless gas emission (100 percent of cases).
  • (10) Paracentesis yielded 4 litres of milky, odorless fluid.
  • (11) Furthermore, they are tasteless and odorless and have no side effects.
  • (12) Konnyaku is highly elastic, white in color, and virtually odorless.
  • (13) Aspartame is a white, odorless, crystalline powder and consists of two amino acids, L-aspartic acid and L-phenylalanine.
  • (14) Radon is a colorless, odorless gas formed by radioactive decay of radium and uranium, which are naturally present in the earth's crust.
  • (15) We further describe the advantages of this method (odorless, precise, reproducible) in contrast to other current methods.
  • (16) Hexamethylenetetramine is an odorless powder and slowly liberates formaldehyde in an acid medium or when heated.
  • (17) Dry Spirulinae decoloration with ethanol and acetone lead to a pale-yellow Spirulinae meal with 80 p. 100 efficiency; it is fine practically odorless and including 84.2 p. 100 proteins.
  • (18) Postoperative advising by professional nurses help the patient to maintain an odorless, leak-proof and continent stoma.
  • (19) This study describes a method which uses enzymatic additions of detergents (household washing products) to macerate small vertebrates or their heads, respectively, in a rapid, most effective, careful, rather odorless way and without any pollution of the environment.
  • (20) In these respects, the hearing of gophers can be properly termed 'vestigial' and suggests that life underground can produce as severe a change in hearing as a light-less world produces in vision or an odorless world produces in olfaction.

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