What's the difference between olfaction and smell?

Olfaction


Definition:

  • (n.) The sense by which the impressions made on the olfactory organs by the odorous particles in the atmosphere are perceived.

Example Sentences:

  • (1) There appears to be a perceptual limitation in olfaction relative to vision that influences stimulus encoding and stimulus retrieval processes but that does not affect retrieval of associated responses.
  • (2) Using this olfactory scale in the blotting paper test a rough quantitative screening of the degree of olfaction impairment should be possible, without recourse to expensive olfactometry.
  • (3) The significance of olfaction is frequently overlooked by health professionals.
  • (4) 4 days after the beginning of replacement therapy the treated mice were placed on an 18-hour food deprivation schedule in preparation for olfaction tests.
  • (5) An intact hippocampal formation, but not amygdala, is necessary for cross-modal association between vision and olfaction, topographical memory, conditioning to context, and configural discrimination learning.
  • (6) When deprived of olfaction, the performance of young women fell to the same level as that of the old women on first exposure.
  • (7) Our results suggest a role for cyclic nucleotides in olfactory transduction, and point to a molecular analogy between olfaction and visual, hormone and neurotransmitter reception.
  • (8) The pheromones now known in mammals are mostly transferred by contact and detected by accessory olfaction, which further indicates that pheromones in mammals should not be considered to be even a subclass of social odors.
  • (9) Offspring were assessed longitudinally for growth, mortality, and behavior (olfaction, locomotor activity, maze learning, avoidance acquisition and startle).
  • (10) We conclude that (1) IGD patients appear to retain minimal endogenous GnRH secretion so that the IGD pituitary responds to a minimal dose of GnRH without priming; (2) IGD is a heterogeneous syndrome in which affected individuals with and without normal olfaction represent parts of the spectrum of the same disease; and (3) except for the PRL response in females, the PRL, TSH and GH responses demonstrate that the IGD pituitaries are largely intact.
  • (11) To evaluate whether impaired olfaction may indicate CNS disease, the authors measured odor identification in patient groups defined along a continuum of progressive immunodeficiency and in a comparison group.
  • (12) To assess the relationship between sniff resistance and olfaction, ten subjects without nasal pathology or complaint were asked to estimate the perceived magnitude of the odorant, ethyl butyrate, at each of four concentrations and against each of four different resistances.
  • (13) Disturbances of taste but not olfaction have been reported with tetracycline use in the past.
  • (14) The tentacles of the terrestrial snail Achatina fulica contain an epithelium at their tips which is specialized for olfaction.
  • (15) The olfactory test administered to patients at the Connecticut Chemosensory Clinical Research Center combines stability of outcome with sensitivity to variables known to affect olfaction (age, sex).
  • (16) The utilization by evolution of the three-segment architecture of GTP-dependent signal transduction for other modalities of sensory perception, such as olfaction (Lancet et al., this volume) and gustation (Jones et al., this volume), is certainly a reasonable and successful choice.
  • (17) The chemical substances were perceived by the recipient females by means of olfaction.
  • (18) The full importance of olfaction has received minimal attention until recently renewed interest reveals that it becomes necessary not only for protection but also for digestion, memory, emotions, motor skills, and sexual performance.
  • (19) A prospective study of 100 patients undergoing nasal surgery was done to quantitate the effects of nasal surgery on olfaction.
  • (20) Drug preferences were usually evident within the first 10 min of the session, suggesting they were based on olfaction, taste, or other immediate postingestional effects.

Smell


Definition:

  • (n.) To perceive by the olfactory nerves, or organs of smell; to have a sensation of, excited through the nasal organs when affected by the appropriate materials or qualities; to obtain the scent of; as, to smell a rose; to smell perfumes.
  • (n.) To detect or perceive, as if by the sense of smell; to scent out; -- often with out.
  • (n.) To give heed to.
  • (v. i.) To affect the olfactory nerves; to have an odor or scent; -- often followed by of; as, to smell of smoke, or of musk.
  • (v. i.) To have a particular tincture or smack of any quality; to savor; as, a report smells of calumny.
  • (v. i.) To exercise the sense of smell.
  • (v. i.) To exercise sagacity.
  • (v. t.) The sense or faculty by which certain qualities of bodies are perceived through the instrumentally of the olfactory nerves. See Sense.
  • (v. t.) The quality of any thing or substance, or emanation therefrom, which affects the olfactory organs; odor; scent; fragrance; perfume; as, the smell of mint.

Example Sentences:

  • (1) • young clownfish will lose their ability to "smell" the anemone species that they shelter in.
  • (2) Earlier recognition of foul-smelling mucoid discharge on the IUD tail, or abnormal bleeding, or both, as a sign of early pelvic infection, followed by removal of the IUD and institution of appropriate antibiotic therapy, might prevent the more serious sequelae of pelvic inflammation.
  • (3) The lid is fiddly to fit on to the cup, and smells so strongly of silicone it almost entirely ruins the taste of the coffee if you don’t remove it.
  • (4) A history and physical examination focused on signs and symptoms of chemosensory disorders, in combination with screening tests for taste and smell function, can quickly and easily delineate the general type and cause of the dysfunction.
  • (5) The coke sailed up my nasal passage, leaving behind the delicious smell of a hot leather car seat on the way back from the beach.
  • (6) "When I burp and pass wind the smell is absolutely horrendous.
  • (7) 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.
  • (8) Receptor cells with cilia were observed, and although the olfactory system undergoes further differentiation during pouch life and although the olfactory epithelium and bulb of the newborn differs from that of the adult, these facts do not preclude the ability of the newborn to detect smell.
  • (9) Donna Sinclair, head of Options 4 Change, a charity working with black youths "I went to Brixton the morning after and the smell of burning, and what you could see told a huge story.
  • (10) 'The smell had become unbelievably bad by then', she said.
  • (11) Anything that good for you might be expected to smell foul and come in a medicine bottle, but the Mediterranean diet is generally considered to be delicious, except by those who hate olive oil.
  • (12) The media, smelling blood, has fallen into pack formation.
  • (13) It might smell close to pot, he said, but would be “tainted” because of all the other items and plants like poison oak burning along with it.
  • (14) Data from each subject were fitted by a compartmental model for zinc metabolism that was developed previously for patients with taste and smell dysfunction.
  • (15) Learning of the motor to the mother smell seems to occur yet in prenatal period.
  • (16) Guardian US environment correspondent Suzanne Goldenberg looked at the role cities would have to play in reducing emissions: At-risk cities hold solutions to climate change: UN report It is already taking shape as the 21st century urban nightmare: a big storm hits a city like Shanghai, Mumbai, Miami or New York, knocking out power supply and waste treatment plants, washing out entire neighbourhoods and marooning the survivors in a toxic and foul-smelling swamp.
  • (17) A sensory world beyond the care setting can be evoked through recorded birdsong or the smell of flowers.
  • (18) Similar messages delivered by previous populist, independent candidates like Ralph Nader and Ross Perot didn’t catch on because there was always that whiff of ego that voters like me could smell, coupled with lack of experience in government.
  • (19) Of the group returning the tests, seven employees reported having smell problems due to allergies or sinus disease.
  • (20) This is payback, without a doubt.” The workers recently won the support of Will Self, who supported a boycott of the venue, writing : “If the punters wake up and smell the crap coffee of corporate greed, perhaps we won’t be so keen on contributing to those revenues.

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