The difference between Calculus and Stone

Calculus as a noun (dated, countable):

Calculation; computation.

Calculus as a noun (countable, mathematics):

Any formal system in which symbolic expressions are manipulated according to fixed rules.

Calculus as a noun (uncountable, often, definite, '''the calculus'''):

Differential calculus and integral calculus considered as a single subject; analysis.

Calculus as a noun (countable, medicine):

A stony concretion that forms in a bodily organ.

Calculus as a noun (uncountable, dentistry):

Deposits of calcium phosphate salts on teeth.

Calculus as a noun (countable):

A decision-making method, especially one appropriate for a specialised realm.

Stone as a noun (uncountable):

A hard earthen substance that can form large rocks.

Stone as a noun:

A small piece of stone, a pebble.

Stone as a noun:

A gemstone, a jewel, especially a diamond.

Stone as a noun (British, plural: '''''stone'''''):

A unit of mass equal to 14 pounds. Used to measure the weights of people, animals, cheese, wool, etc. 1 stone ≈ 6.3503 kilograms

Stone as a noun (botany):

The central part of some fruits, particularly drupes; consisting of the seed and a hard endocarp layer.

Stone as a noun (medicine):

A hard, stone-like deposit.

Stone as a noun (board games):

A playing piece made of any hard material, used in various board games such as backgammon, and go.

Stone as a noun:

A dull light grey or beige, like that of some stones.

Stone as a noun (curling):

A 42-pound, precisely shaped piece of granite with a handle attached, which is bowled down the ice.

Stone as a noun:

A monument to the dead; a gravestone or tombstone.

Stone as a noun (obsolete):

A mirror, or its glass.

Stone as a noun (obsolete):

A testicle.

Stone as a noun (dated, printing):

A stand or table with a smooth, flat top of stone, commonly marble, on which to arrange the pages of a book, newspaper, etc. before printing; also called imposing stone.

Stone as a verb (transitive):

To pelt with stones, especially to kill by pelting with stones.

Stone as a verb (transitive):

To remove a stone from (fruit etc.).

Stone as a verb (intransitive):

To form a stone during growth, with reference to fruit etc.

Stone as a verb (transitive, slang):

To intoxicate, especially with narcotics.

Stone as a verb (intransitive, Singapore, slang):

To do nothing, to stare blankly into space and not pay attention when relaxing or when bored.

Stone as a verb (transitive):

To lap with an abrasive stone to remove surface irregularities.

Stone as an adjective:

Constructed of stone.

Stone as an adjective:

Having the appearance of stone.

Stone as an adjective:

Of a dull light grey or beige, like that of some stones.

Stone as an adjective (AAVE):

.

Stone as an adjective (LGBT):

Willing to give sexual pleasure but not to receive it.

Stone as an adverb:

As a stone .

Stone as an adverb (slang):

Absolutely, completely .