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etched in stone

Permanently fixed or firmly established; not subject to any amendment or alteration. Often used in the negative. The deal isn't yet etched in stone, but we're confident it will go ahead as hoped.
See also: etch, stone

etch (something) in(to) (something)

To cut something, such as a design or message, into some material or surface, usually with acid. Here, use the substance and try to etch your name into the glass.
See also: etch

etch something in(to) something

 and etch something in
to erode a design or message into something, usually with acid. They etched their family crest into their good crystal. He etched in his initials.
See also: etch

cast in stone

Also, etched in stone. Definite, fixed, as in We may choose to stay longer-our plans aren't cast in stone, or When Carl sets an agenda you can safely assume it's etched in stone. Both expressions allude to sculpture, with the first, from the early 1500s, using the verb cast in the sense of pouring and hardening some material into a final form, and the second cutting or corroding a permanent design.
See also: cast, stone

be etched on your ˈheart/ˈmemory/ˈmind

be something that you will never forget because it affected you so strongly: The image of their son holding up the championship trophy would be etched on their memories forever.
See also: etch, heart, memory, mind, on
References in periodicals archive ?
2) El Camino Real's Katie Etcher, left, celebrates her lone goal with teammate Lindsey Forte while Chatsworth's Kishi Smith sloshes away.
Although Etcher can already envision a third career trip to East L.
The Mask Etcher V(TM) combines all the right process technologies with material solutions providing cost-effective, viable options to address constantly evolving market dynamics.
Tokyo Electron Limited, headquartered in Tokyo, Japan, was established in 1963 and has been a long-term supplier of coater/developers, etchers, probers, surface preparation cleaning systems and diffusion furnaces to Intel.
The company was given the award for its efforts in supplying Intel with litho track, dry etcher, cleaning systems, diffusion furnaces and wafer probers.
Equipment includes EV Group's spin/spray coater, mask aligner, wafer bonder, UV Imprint and hot-embossing equipment, an STS Deep Si Etcher, technotrans' electroplating system for stamp manufacturing of nanotechnology, and a Raith E-Beam Lithography System for nano-patterning.
The company manufacturers Atomic Layer Deposition (ALD), Metal ALD/CVD, Plasma Enhanced Dry Etch and LCD Etcher systems.
By its attempt to translate and transpose the somewhat useful French term peintre-graveur into the medium of etching, the publication is already in trouble, since some fine etchers were seldom, if ever, painters.
Hitachi High Technologies manufactures plasma etchers, electron microscopes, PFC abatement systems, SIMOX implanters and other wafer processing equipment.
Compared to standard 4-chamber metal etchers, the Opus AdvantEdge delivers 50% better critical dimension (CD) uniformity, a 2x faster strip rate with enhanced corrosion resistance, and 50% higher throughput - while still maintaining a standard etch bay footprint.
TDX will initially be applied to TEL etchers and will centralize the EES functionality of the same type of equipment.
Auction items for sale include a large assortment of etchers, sputterers, PECVD and CVD systems, probers, RIE's, ion mills, ashers, xray, inspection and metrology tools, wet process tools, chillers, vacuum pumps, RF power supplies, plasma and vapor prime ovens, probe stations, coaters, SRD's, leak detectors and more.
The company manufactures a complete line of photoresist and dielectric coat/bake/develop systems, microlithography exposure systems, wafer and device bonders, probers, photomasks, cleaners and etchers.
AMD selected several types of etchers, including the company's latest Applied Centura(R) Enabler(R) and Producer(R) Dielectric Etch systems for etching advanced copper/low k interconnects.