Also found in: Dictionary, Thesaurus, Medical, Legal, Acronyms, Encyclopedia, Wikipedia.

inner core

The innermost part of something. The term is used both literally and figuratively. What is the Earth's inner core made of? At his inner core, he's a good person, I just know it.
See also: core, inner

outer core

One part of the inside of the Earth (as opposed to the Earth's "inner core"). All right class, what can you tell me about the Earth's outer core?
See also: core, outer

be rotten to the core

To be entirely bad, evil, or corrupt. The defense attorney refused to take the case when he realized the criminal was rotten to the core, unrepentantly boasting about his heinous crimes. That company is just rotten to the core—I wouldn't be surprised if all the employees were embezzling money!
See also: core, rotten

to the core

Fully or completely; in the most essential or inherent way. That company is just rotten to the core—I wouldn't be surprised if all the employees were embezzling money!
See also: core

hard core

1. noun A very devoted subset of an organization. They're the hard core of the group, so I'd talk them if you're interested in volunteering.
2. adjective Describing someone who is staunch and unyielding in their beliefs. The phrase is typically hyphenated when used before a noun. She's a hard-core liberal, so good luck getting her to listen to your conservative views.
3. adjective Describing pornography that is especially graphic or explicit. I was appalled to find hard-core porn on his computer.
4. adjective Describing something that is especially intense or impressive. Wow, you're really specializing in surgery? That's hard core!
5. adjective Describing a style of rock music that is especially loud and aggressive. You'll go deaf if you keep listening to that hard core rock at such a loud volume!
See also: core, hard

rotten to the core

Fig. really bad; corrupt. That lousy punk is rotten to the core. The entire administration is rotten to the core.
See also: core, rotten

to the core

all the way through; basically and essentially. (Usually with some negative sense, such as evil, rotten, etc.) Bill said that John is evil to the core. This organization is rotten to the core.
See also: core

rotten to the core

Thoroughly bad, as in It seems that this police unit is rotten to the core, involved in numerous extortion schemes . The noun core here denotes the central part or heart of anything or anyone. The idiom was first recorded in 1804.
See also: core, rotten

to the core

COMMON You use to the core after an adjective to make a statement stronger, especially a statement describing how someone feels or describing the character of someone or something. Father Godfrey Carney said the community was shocked to the core. The insurance industry is rotten to the core. Loxton, the artist, was English to the core yet she was inspired by France.
See also: core

to the ˈcore

very much; in every way: He’s a Welshman to the core.They believe that our society is rotten to the core (= completely bad).
See also: core

(the) ˌhard ˈcore

(British English) the small central group in an organization, or in a particular group of people, who are the most active or who will not change their beliefs or behaviour: It’s only really the hard core that bother(s) to go to meetings regularly. ▶ ˈhard-core adj.
1 having a belief or a way of behaving that will not change: a hard-core political activist
2 relating to pornography (= books, videos, etc. that describe or show naked people and sexual acts) of an extreme kind: hard-core sex magazines
See also: core, hard


1. mod. sexually explicit; pornographic. You can’t sell that hard-core stuff in a store like this!
2. mod. extreme; entrenched. There are too many hard-core cases of poverty there.
3. mod. very good; stunning; great. I’d like a really hard-core pizza with at least five kinds of cheese.
4. mod. extreme; quintessential. She thinks of herself as a hard-core leftist.

rotten to the core

mod. really bad. (see also rotten apple.) That lousy punk is rotten to the core.
See also: core, rotten

soft core

1. mod. referring to a mild type of pornography. Now even the soft core stuff is getting harder to find at newsstands.
2. n. mild pornography. They keep some soft core under the counter.
See also: core, soft


1. mod. [of pornography] less revealing or realistic than real life; not showing genitals. They are showing a lot of soft-core stuff on cable and most of the soap operas.
2. mod. less intense or extreme than hard-core. She had a soft-core approach to portraying suffering.
References in periodicals archive ?
After clipping the core into the bath, the KR 500 lifts it out again and transfers it to the apron conveyor of the drying furnace.
Overall, NIEHS expects that an EHS Core Center will: 1) provide intellectual leadership and innovation in environmental health sciences, environmental medicine, and public health; 2) stimulate integration of basic, applied, and clinical research in order to better understand the impact of environmental exposures on human disease; 3) facilitate and develop new multidisciplinary and interdisciplinary research strategies to advance the field; 4) incorporate novel technologies and methods into EHS research; 5) serve as a source of information and expertise to the surrounding communities and stakeholders in order to further scientific collaborations and dissemination of research results; 6) provide career development for future research leaders.
As pilot Core Discovery courses began, instructors requested library tours.
Both are achieved by partially withdrawing the core from the part while the part remains in the cavity.
31, 2002 (as long as the core valuation issue is not under consideration in an examination).
In order to develop core strength, you need to involve all of those forces.
Two years ago, a pair of seismologists discovered evidence that the inner core is dancing to its own beat, spinning measurably faster than the rest of the planet.
This enables the memory controller to service external memory requests independent from core p-state transitions, thus enabling p-state opportunities which can lead to additional power savings.
or more of linear rack travel to turn the core one complete revolution.
Lucio Costa, director of the Neurotoxicology Core and a professor of environmental health, and Clement Furlong, a member of the Neurotoxicology Core and a professor of medical genetics, have determined that people can vary in both the amount and type of paraoxonase their bodies produce.
In the model, Earth's rotation segregates the outer core's fluid into two regions separated by a cylindrical barrier enclosing the inner core.
The core deposit intangible asset has historically been the most significant intangible asset that has been acquired with the purchase of core deposit accounts.
With the addition of the multi-gigabit triple-mode IP core to our IP portfolio, Jetstream Media Technologies empowers System on Chip (SoC) vendors to build processors that support all three cryptographic algorithms AES-CCM, AES-GCM, and XEX-AES.
The low hot strength can result in an increased frequency of casting defects, such as veining and core breakage, and hot distortion from thermal expansion and resin breakdown under high temperatures.