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单词 bolus
释义
bolus
noun[C]
medicalspecialized
uk
/ˈbəʊ.ləs/us
/ˈboʊ.ləs/

bolusnoun[C](MASS)

asmallroundlumpof asubstance,especiallypartlydigestedfood:
（尤指咀嚼过的）一团东西
Theyfoundalargebolus ofcloggedmaterialin herstomach.他们发现她的胃里堵了一大团东西。
More examples
  • Thegelmayforma bolus.
  • After taking adrinkthefoodisbroughtback up in a bolus.
  • Meat bolus was the mostcommoncauseof esophagealobstruction.
  • Anattempttoremovethe bolus wasunsuccessfulas it wastightlyimpactedin the distalesophagus.
SMART Vocabulary: related words and phrases
Masses and large amounts of things
  • accumulation
  • any number ofthingsidiom
  • armload
  • backlog
  • bounteous
  • flood
  • foam
  • logjam
  • many
  • motherlode
  • multi-million
  • multitude
  • myriad
  • pile
  • stack
  • tsunami
  • wedge
  • welter
  • whoosh
  • wodge
See more results »

bolusnoun[C](DRUG)

asingledose(=measuredamount)of adrug:
一片药；一剂药
Patients were given boluses of 20 or 30 μg of fentanyl.病人注射了20或30微克芬太尼。
More examples
  • Thepatientpressesabuttonandreceivesapresetdoseor "bolus" of thedrug(e.g. onemilligramofmorphine).
  • Caffeine citrate iscommonlyadministeredas a 20 mg/kg bolus (IV ororal).
  • Givefluidboluses of 10-20ml/kg andassessclinically.
  • It is given as a bolus (1.0-1.5 mg/kg)intravenously.
SMART Vocabulary: related words and phrases
Medicines & drugs: administering drugs & medicines
  • anaesthesiology
  • anaesthetize
  • auto-injector
  • blood doping
  • deprescribe
  • dispense
  • inject
  • jab
  • knocksomeoneout
  • lethal injection
  • medicated
  • microdose
  • microdosing
  • nebulize
  • prescribe
  • reinject
  • reinjection
  • sedation
  • self-medicate
  • self-medication
See more results »

You can also find related words, phrases, and synonyms in the topics:

Medicine in different forms
(Definition ofbolusfrom theCambridge Advanced Learner's Dictionary & Thesaurus© Cambridge University Press)

Examplesofbolus

bolus
If heart rate did not decrease by > 10 bpm, the infusion rate was doubled and a second esmololboluswas given.
From theCambridge English Corpus
This propels thebolusto the stomach through the lower oesophageal sphincter.
From theCambridge English Corpus
Other common near misses included using the wrong field size, energy, collimator angle,bolusor wedge direction.
From theCambridge English Corpus
Its biological function is to guide a foodbolusinto the oesophagus.
From theCambridge English Corpus
Thebolusmoves with a bulk speed equal to that of the drops.
From theCambridge English Corpus
All boluses of field-checked faeces were broken open by hand and seeds separated from faecal material.
From theCambridge English Corpus
In the oral cavity, repetitive tongue pumping delays the movement of thebolusand diminishes triggering the pharyngeal swallow.
From theCambridge English Corpus
Checking ifbolusmaterial was not forgotten can not be done systematically; it was only counted if the radiation technologist reported it.
From theCambridge English Corpus
It has a rapid onset of action, which persists for around one hour after abolusinjection.
From theCambridge English Corpus
Smaller doses, smaller rates of infusion or repeated small boluses are advisable.
From theCambridge English Corpus
Bolusdoses are not more effective or safer than infusion.
From theCambridge English Corpus
However, the cost of a sufficient number of boluses to treat adult cattle could be prohibitive.
From theCambridge English Corpus
The custombolusreduces air gaps or other variations in thickness seen with standard flat sheets ofbolusmaterial.
From theCambridge English Corpus
Effects of verbal cue onbolusflow during swallowing.
From theCambridge English Corpus
Salivary gland secretion is reduced; mastication to prepare food is increased, as is the time required to prepare thebolus.
From theCambridge English Corpus
These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors.
#https://dictionary.cambridge.org//dictionary/english/bolus##
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更新时间：2024/12/28 3:56:50