Pronunciation: /ælˈviːəˌlaɪ/

Definitions of alveoli

noun tiny air sacs in the lungs where the exchange of oxygen and carbon dioxide takes place

Example Sentences

A1 Alveoli are tiny air sacs in the lungs where oxygen and carbon dioxide are exchanged.

A2 The alveoli play a crucial role in the respiratory system by facilitating gas exchange.

B1 Damage to the alveoli can result in breathing difficulties and decreased lung function.

B2 The alveoli have a large surface area to maximize the exchange of gases during respiration.

C1 Research has shown that smoking can cause irreversible damage to the alveoli.

C2 Pulmonary surfactant helps to reduce surface tension in the alveoli, preventing collapse during exhalation.

Examples of alveoli in a Sentence

formal The alveoli are tiny air sacs in the lungs where gas exchange takes place.

informal When you breathe in, the alveoli help to transfer oxygen into your bloodstream.

slang I heard smoking can really damage your alveoli.

figurative The alveoli of society are the individuals who contribute to its overall health and well-being.

Grammatical Forms of alveoli

plural

alveoli

comparative

more alveolar

superlative

most alveolar

present tense

alveolize

future tense

will alveolize

perfect tense

have alveolized

continuous tense

is alveolizing

singular

alveolus

positive degree

more alveolar

infinitive

to alveolize

gerund

alveolizing

participle

alveolized

Origin and Evolution of alveoli

First Known Use: 1601 year
Language of Origin: Latin
Story behind the word: The word 'alveoli' comes from the Latin word 'alveolus' which means 'little cavity or hollow'.
Evolution of the word: Originally used in the context of anatomy to refer to small cavities in the lungs, the term 'alveoli' has evolved to also be used in other scientific fields such as biology and chemistry to describe small hollow structures.