Pronunciation: [bˈə͡ʊləs] (IPA) 
The word "bolus" is spelled with the letter combination "olus" which can be pronounced as /əʊləs/. The "o" sound is pronounced as a long vowel sound /əʊ/. The "l" sound is pronounced as /l/, the "u" sound is pronounced as /ʌ/ and the "s" sound is pronounced as /s/. "Bolus" is a term commonly used in the medical field and refers to a single dose of a medication or substance that is administered orally.
A bolus refers to a condensed mass or lump, typically made of a substance that can be ingested or injected. The term is commonly used in medical contexts to describe a specific amount of medication or food that is administered or consumed in a single dose or action. With regard to medicine, a bolus often refers to a concentrated dose of a medication or fluid that is rapidly delivered intravenously. This method allows for a quick and immediate delivery of the substance into the bloodstream.
In terms of ingestion, a bolus describes a mass of food or liquid that is chewed and swallowed in a single bite or gulp. It is the initial stage of the digestive process, which takes place in the oral cavity. During this process, the food or liquid is mixed with saliva, forming a cohesive mass known as a bolus that can be easily swallowed and passed to the esophagus.
The term "bolus" is derived from the Latin word "bolus," which means "mass" or "lump." It is important to note that while the definition of bolus is generally associated with medical and dietary terminology, the word can also have other meanings in different contexts, such as in pharmacology or within environmental sciences.
A very large pill, usually of soft consistence, made extemporaneously and to be taken at once.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
A soft mass of medicine to be swallowed at once like a pill, but larger.
Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874.
* The statistics data for these misspellings percentages are collected from over 15,411,110 spell check sessions on www.spellchecker.net from Jan 2010 - Jun 2012.
The word "bolus" originated from the Latin word "bolus", which was derived from the Greek word "bolos" meaning "lump" or "mass". This Greek term was ultimately derived from the Proto-Indo-European root "*bel-" meaning "to inflate" or "to swell". Over time, "bolus" has been adopted into various languages and is commonly used in medical contexts to refer to a rounded mass, such as a medicinal pill or a small mass of food swallowed in a single gulp.
