motility vs mobility

Meanings

1. 1phrasefixed phrase

   A comparison of motility, the ability of cells or body parts to move by themselves, with mobility, the general ability to move or be moved.

   Grammar: Used as a topic label or heading when explaining the difference between the two nouns; both words are uncountable.

   Patterns

   • motility vs mobility
   • the difference between motility and mobility
   • motility versus mobility

   In the exam we had to explain motility vs mobility in the digestive tract.

   The article's title, 'Motility vs Mobility', confused readers because the two terms overlap in everyday speech.

   Her lecture on motility vs mobility used gut muscles and knee joints as examples.

2. 2noununcountabletechnicalbiologymedical

   The ability of a cell, organ, or organism to move actively by itself, especially in biology and medicine.

   Grammar: Uncountable and technical: say 'reduced motility', not 'a motility'.

   Patterns

   • reduce motility
   • bowel motility
   • sperm motility

   Certain drugs reduce bowel motility, which can cause constipation.

   The lab tested sperm motility as part of the fertility assessment.

   Bacterial motility allows these organisms to swim toward nutrients.

3. 3noununcountable

   The ability of a person to move or travel freely, or of joints to move through their full range.

   Grammar: Uncountable; often used with 'improve', 'restore', or 'limit'.

   Patterns

   • improve mobility
   • limited mobility
   • mobility problems

   After the hip operation, she worked with a physiotherapist to improve her mobility.

   The building has ramps for people with limited mobility.

   Regular stretching can help maintain joint mobility as you age.

4. 4noununcountablebusinessspecialist

   The movement of people between jobs, places, or social classes, or the ease of such movement.

   Grammar: Uncountable; common in social and economic writing, often before another noun: 'social mobility'.

   Patterns

   • social mobility
   • upward mobility
   • labor mobility

   Better schools are often seen as a way to increase social mobility.

   The report examined labor mobility between the two regions.

   Upward mobility has slowed for younger workers in many industries.

Common combinations

gut motility

Stress can affect gut motility and cause stomach pain.

sperm motility

Low sperm motility can make it harder to conceive.

limited mobility

The hotel has rooms designed for guests with limited mobility.

social mobility

Education is often described as an engine of social mobility.

upward mobility

Many graduates hope their degree will lead to upward mobility.

Synonyms and how they differ

movement

A general word for changing position; it does not suggest the technical, self-generated motion that motility does.

motion

Often means movement in physics or formal writing; it does not carry the biological sense of cells moving themselves.

flexibility

Focuses on range of movement in joints or muscles, whereas mobility can also mean moving around or changing social position.

Opposites

Word family

motile adjective

Able to move by itself, used mainly of cells and simple organisms.

mobility noun

The general ability to move, travel, or change position.

mobilize verb

To organize people or resources to act, or to make something movable.

mobility aid noun

A device such as a cane or walker that helps someone move around.

Commonly confused: motility vs mobility or mobility? motility vs mobility or mortality?

Practice

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Write a sentence using “motility vs mobility”, then check it and compare it with the examples above.

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