| cos | (noun) lettuce with long dark-green leaves in a loosely packed elongated head | Synonyms: cos lettuce, romaine, romaine lettuce |
|---|
| (noun) ratio of the adjacent side to the hypotenuse of a right-angled triangle | Synonyms: cosine |
| coscoroba | (noun) large white South American bird intermediate in some respects between ducks and swans | - |
|---|
| cosec | (noun) ratio of the hypotenuse to the opposite side of a right-angled triangle | Synonyms: cosecant |
|---|
| cosecant | (noun) ratio of the hypotenuse to the opposite side of a right-angled triangle | Synonyms: cosec |
|---|
| cosh | (noun) a piece of metal covered by leather with a flexible handle; used for hitting people | Synonyms: blackjack, sap |
|---|
| cosignatory | (noun) one of two or more signers of the same document (as a treaty or declaration) | Synonyms: cosigner |
|---|
| cosigner | (noun) one of two or more signers of the same document (as a treaty or declaration) | Synonyms: cosignatory |
|---|
| (noun) a signer in addition to the principal signer (to verify the authenticity of the principal signature or to provide surety) | - |
| cosine | (noun) ratio of the adjacent side to the hypotenuse of a right-angled triangle | Synonyms: cos |
|---|
| cosiness | (noun) a state of warm snug comfort | Synonyms: coziness, snugness |
|---|
| cosmea | (noun) any of various mostly Mexican herbs of the genus Cosmos having radiate heads of variously colored flowers and pinnate leaves; popular fall-blooming annuals | Synonyms: cosmos |
|---|
| cosmetic | (noun) a toiletry designed to beautify the body | - |
|---|
| cosmetician | (noun) someone who sells or applies cosmetics | - |
|---|
| (noun) someone who works in a beauty parlor | Synonyms: beautician |
| cosmetologist | (noun) an expert in the use of cosmetics | - |
|---|
| cosmetology | (noun) the practice of beautifying the face and hair and skin | - |
|---|
| cosmid | (noun) (genetics) a large vector that is made from a bacteriophage and used to clone genes or gene fragments | - |
|---|
| cosmogeny | (noun) the branch of astrophysics that studies the origin and evolution and structure of the universe | Synonyms: cosmogony, cosmology |
|---|
| cosmogony | (noun) the branch of astrophysics that studies the origin and evolution and structure of the universe | Synonyms: cosmogeny, cosmology |
|---|
| cosmographer | (noun) a scientist knowledgeable about cosmography | Synonyms: cosmographist |
|---|
| cosmographist | (noun) a scientist knowledgeable about cosmography | Synonyms: cosmographer |
|---|
| cosmography | (noun) a representation of the earth or the heavens | - |
|---|
| (noun) the science that maps the general features of the universe; describes both heaven and earth (but without encroaching on geography or astronomy) | - |
| cosmolatry | (noun) the worship of the cosmos | - |
|---|
| cosmologist | (noun) an astronomer who studies the evolution and space-time relations of the universe | - |
|---|
| cosmology | (noun) the branch of astrophysics that studies the origin and evolution and structure of the universe | Synonyms: cosmogeny, cosmogony |
|---|
| (noun) the metaphysical study of the origin and nature of the universe | - |
| cosmonaut | (noun) a person trained to travel in a spacecraft | Synonyms: astronaut, spaceman |
|---|
| cosmopolitan | (noun) a sophisticated person who has travelled in many countries | Synonyms: cosmopolite |
|---|
| cosmopolitanity | (noun) a state or quality of being cosmopolitan | - |
|---|
| cosmopolite | (noun) a sophisticated person who has travelled in many countries | Synonyms: cosmopolitan |
|---|
| cosmos | (noun) everything that exists anywhere | Synonyms: creation, existence, macrocosm, universe, world |
|---|
| (noun) any of various mostly Mexican herbs of the genus Cosmos having radiate heads of variously colored flowers and pinnate leaves; popular fall-blooming annuals | Synonyms: cosmea |
| cosmotron | (noun) a large proton synchrotron; uses frequency modulation of an electric field to accelerate protons | - |
|---|
| cosplayer | (noun) Someone who wears a costume from a comic book or similar media | - |
|---|
| coss | (noun) (in India) a unit of length having different values in different localities | Synonyms: kos |
|---|
| cost | (noun) the property of having material worth (often indicated by the amount of money something would bring if sold) | Synonyms: monetary value, price |
|---|
| (noun) value measured by what must be given or done or undergone to obtain something | Synonyms: price, toll |
| (noun) the total spent for goods or services including money and time and labor | - |
| costa | (noun) any of the 12 pairs of curved arches of bone extending from the spine to or toward the sternum in humans (and similar bones in most vertebrates) | Synonyms: rib |
|---|
| (noun) a riblike part of a plant or animal (such as a middle rib of a leaf or a thickened vein of an insect wing) | - |
| costalgia | (noun) pain in the chest caused by inflammation of the muscles between the ribs | Synonyms: pleuralgia, pleurodynia |
|---|
| costermonger | (noun) a hawker of fruit and vegetables from a barrow | Synonyms: barrow-boy, barrow-man |
|---|
| costia | (noun) a flagellate that is the cause of the frequently fatal fish disease costiasis | Synonyms: Costia necatrix |
|---|
| costiasis | (noun) a fatal disease of freshwater fish caused by a flagellated protozoan invading the skin | - |
|---|
| costing | (noun) cost accounting | - |
|---|
| costliness | (noun) the quality possessed by something with a great price or value | Synonyms: dearness, preciousness |
|---|
| costmary | (noun) leaves used sparingly (because of bitter overtones) in sauces and soups and stuffings | - |
|---|
| (noun) tansy-scented Eurasian perennial herb with buttonlike yellow flowers; used as potherb or salad green and sometimes for potpourri or tea or flavoring; sometimes placed in genus Chrysanthemum | Synonyms: alecost, balsam herb, bible leaf, Chrysanthemum balsamita, mint geranium, Tanacetum balsamita |
| costochondritis | (noun) inflammation at the junction of a rib and its cartilage | - |
|---|
| costs | (noun) pecuniary reimbursement to the winning party for the expenses of litigation | - |
|---|
| costume | (noun) the attire worn in a play or at a fancy dress ball | - |
|---|
| (noun) the attire characteristic of a country or a time or a social class | - |
| (noun) unusual or period attire not characteristic of or appropriate to the time and place | - |
| (noun) the prevalent fashion of dress (including accessories and hair style as well as garments) | - |
| costumer | (noun) someone who designs or supplies costumes (as for a play or masquerade) | Synonyms: costume designer, costumier |
|---|
| costumier | (noun) someone who designs or supplies costumes (as for a play or masquerade) | Synonyms: costume designer, costumer |
|---|
| costusroot | (noun) annual herb of the eastern Himalayas (Kashmir) having purple florets and a fragrant root that yields a volatile oil used in perfumery and for preserving furs | Synonyms: Saussurea costus, Saussurea lappa |
|---|
| cosy | (noun) a padded cloth covering to keep a teapot warm | Synonyms: cozy, tea cosy, tea cozy |
|---|