Background for core

core

/kɔː/ /kɔɹ/

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noun

The central part of fruit, containing the kernels or seeds.

Examples :

"the core of an apple or quince"

fruit part seed essential ielts toefl

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noun

The heart or inner part of a physical thing

Examples :

"The core of the math problem was figuring out the formula. "

part thing essential ielts toefl

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noun

The center or inner part of a space or area

Examples :

"the core of a square"

area part space essential ielts toefl

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noun

The most important part of a thing; the essence.

Examples :

"the core of a subject"

abstract thing part essential ielts toefl

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noun

The portion of a mold that creates an internal cavity within a casting or that makes a hole in or through a casting.

Examples :

"The sculptor used a special core to create the hollow space inside the statue. "

material technical industry machine essential ielts toefl

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noun

The bony process which forms the central axis of the horns in many animals.

Examples :

"The deer's horns had a strong, calcium-rich core. "

anatomy animal body part essential ielts toefl

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noun

Magnetic data storage.

Examples :

"The computer's core holds the student's important files for the project. "

technology electronics computing machine essential ielts toefl

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noun

An individual computer processor, in the sense when several processors (called cores or CPU cores) are plugged together in one single integrated circuit to work as one (called multi-core processor).

Examples :

"I wanted to play a particular computer game, which required I buy a new computer, so while the game said it needed at least a dual-core processor, I wanted my computer to be a bit ahead of the curve, so I bought a quad-core."

computing electronics technology machine technical essential ielts toefl

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noun

The material between surface materials in a structured composite sandwich material.

Examples :

"a floor panel with a Nomex honeycomb core"

material technical essential ielts toefl

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noun

The inner part of a nuclear reactor in which the nuclear reaction takes place.

Examples :

"The core of the nuclear reactor was carefully monitored for any signs of overheating. "

energy physics technology machine fuel science industry essential ielts toefl

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noun

A piece of ferromagnetic material (i.e. soft iron), inside the windings of an electromagnet, that channels the magnetic field.

Examples :

"The electromagnet used in the science experiment had a core of soft iron, which concentrated the magnetic field. "

material physics electronics essential ielts toefl

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noun

A disorder of sheep caused by worms in the liver.

Examples :

"The sheep in the pasture showed signs of core, a disease caused by liver worms. "

disease animal biology agriculture essential ielts toefl

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noun

A cylindrical sample of rock or other materials obtained by core drilling.

Examples :

"The geologists collected a core sample from the deep earth formation. "

geology material technical essential ielts toefl

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noun

A tiny sample of organic material obtained by means of a fine-needle biopsy.

Examples :

"The doctor took a core sample from the patient's tumor to analyze the cells. "

medicine biology essential ielts toefl

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noun

The central part of a protein structure consisting in mostly hydrophobic aminoacids.

Examples :

"The core of the protein in the new muscle-building supplement is made mostly of hydrophobic amino acids. "

biochemistry biology chemistry structure organism anatomy body physiology science technical essential ielts toefl

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noun

The set of feasible allocations that cannot be improved upon by a subset (a coalition) of the economy's agents.

Examples :

"The core group of students who consistently achieved high grades in the class demonstrated the best learning strategies. "

economy business game value math essential ielts toefl

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noun

A hollow cylindrical piece of cardboard around which a web of paper or plastic is winded.

Examples :

"The artist used a cardboard core to wind the paper for her elaborate sculpture. "

material part item essential ielts toefl

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noun

An atomic nucleus plus inner electrons (i.e. except valence electrons).

Examples :

"The core of the atom contains the nucleus and the inner electrons. "

physics element essential ielts toefl

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verb

To remove the core of an apple or other fruit.

Examples :

"Before making the apple pie, I had to core the apples. "

fruit food essential ielts toefl

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verb

To extract a sample with a drill.

Examples :

"The geologist used a drill to core a sample of the rock formation. "

technical geology archaeology agriculture science essential ielts toefl

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noun

A body of individuals; an assemblage.

Examples :

"The core of the debate club is a group of passionate students. "

group organization essential ielts toefl

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noun

A miner's underground working time or shift.

Examples :

"The miner's core was from 2:00 AM to 10:00 AM. "

time job work industry essential ielts toefl

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noun

Various former units of volume, particularly:

Examples :

"The old core measurements for ingredients in the family recipe book were confusing. "

amount unit essential ielts toefl

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noun

(machinery, marine) A deposit paid by the purchaser of a rebuilt part, to be refunded on return of a used, rebuildable part, or the returned rebuildable part itself.

Examples :

"The mechanic asked for a core deposit of $25 for the new engine part. "

technical machine nautical part business commerce finance industry essential ielts toefl