🗂️ To take out ⚗️ To get by process 🧪 A concentrated liquid ✂️ To copy a passage 📖 A short passage ➗ To find a root

to extract

1 8.4

To find a number that, when multiplied by itself the required number of times, gives the original number

verb
/ɪkˈstrækt/

Specialized

: calcular la raíz de

Just extracting square roots in my head.

Examples

Well, if I want to extract the magnitude of one of these things, I get the square root of the sum of the square of the car plus the square of the cutter.
To find the value of x, we need to extract the square root of 49.
In math class, we learned how to extract cube roots using a simple calculator.
To solve the equation, she had to extract the square root of each term on the left side.

Synonyms

to sqrt

vsto extract

Specialized

9.1

To calculate the number that times itself equals the given number

calculates various roots like square or cube rather than only one specific root

Phrasal Verbs

to extract marrow

1 8.1

To remove the soft part inside bones for food

to extract the Michael

Slang

9.9

To tease someone in a playful way

Compounds

vanilla extract

9 2.3

A liquid made by soaking vanilla beans in alcohol to add flavor to food and drinks

almond extract

2 2.0

A liquid with a strong almond taste used in baking

lemon extract

1 3.0

A small amount of liquid that gives lemon flavor to food or drink

cola extract

Specialized

3.9

A flavoring made from the kola nut used to give soft drinks their taste

autolyzed yeast extract

Specialized

7.0

An ingredient made from yeast cells that adds a savory taste

homemade vanilla extract

3.7

People mix alcohol and vanilla beans at home to add flavor to recipes

Surface Forms

extract infinitive

extracted past

extracted past participle

extracting present participle

extracts third person singular

Morphology

extract = tract (semi-transparent) = ex + tract

The sense 'calculate the root' is a specialized application of the general 'take out/pull out' sense of extract, but 'tract' as a standalone morpheme is not familiar to most learners.

Etymology

Extract comes from old Latin parts ex- 'out' and trahere 'to pull'. In maths, to extract a root is like 'pulling out' the number that gives the original when multiplied, the same pulling idea as in tractor.