different between limestone vs keystone

English

Etymology

From lime +? stone.

Pronunciation

• (General American) IPA^(key): /?la?msto?n/
• (Received Pronunciation) IPA^(key): /?la?mst??n/

Noun

limestone (countable and uncountable, plural limestones)

1. An abundant rock of marine and fresh-water sediments; primarily composed of calcite (CaCO₃); it occurs in a variety of forms, both crystalline and amorphous.
2. (attributive) Pertaining to or made of limestone.

   • The house was a big elaborate limestone affair, evidently new. Winter sunshine sparkled on lace-hung casement, on glass marquise, and the burnished bronze foliations of grille and door.

Synonyms

• lime
• calcium carbonate

Hyponyms

• (mineralogy): bluestone, burrstone, calp, coquina, coral rag, chalk, malm, marble, travertine, tufa

Derived terms

Translations

Adjective

limestone (not comparable)(Should we delete⁽⁺⁾ this sense?)

1. Made of or with limestone.

See also

• karst

Anagrams

• lemoniest, milestone

English

Etymology

key +? stone

Definition 4 (retail) perhaps originated in the jewelry industry in the magazine called "Jewelers' Circular-Keystone"Source: https://english.stackexchange.com/questions/341864/what-is-the-source-of-the-word-keystone-in-reference-to-pricing-a-product

Pronunciation

• IPA^(key): /?ki?.st??n/

Noun

keystone (plural keystones)

1. (architecture) The top stone of an arch.
2. Something on which other things depend for support.
3. A native or resident of the American state of Pennsylvania.
4. (retail) A retail price that is double the cost price; a markup of 100%.
5. (baseball) The combination of the shortstop and second baseman.

Derived terms

Translations

Verb

keystone (third-person singular simple present keystones, present participle keystoning, simple past and past participle keystoned)

1. (transitive) To distort (an image) by projecting it onto a surface at an angle, which for example causes a square to look like a trapezoid.
2. (transitive, retail) To double the cost price in order to determine the retail price; to apply a markup of 100%.

Anagrams

• keynotes, keytones