| 1. | the fluid that circulates in the principal vascular system of human beings and other vertebrates, in humans consisting of plasma in which the red blood cells, white blood cells, and platelets are suspended. |
| 2. | the vital principle; life: The excitement had got into the very blood of the nation. |
| 3. | a person or group regarded as a source of energy, vitality, or vigor: It's time we got some new blood in this company. |
| 4. | one of the four elemental bodily humors of medieval physiology, regarded as causing cheerfulness. |
| 5. | bloodshed; gore; slaughter; murder: to avenge the blood of his father. |
| 6. | the juice or sap of plants: the blood of the grape. |
| 7. | temperament; state of mind: a person of hot blood. |
| 8. | physical nature of human beings: the frailty of our blood. |
| 9. | Chiefly British. a high-spirited dandy; an adventuresome youth: the young bloods of Cambridge. |
| 10. | a profligate or rake. |
| 11. | physical and cultural extraction: It was a trait that seemed to be in their blood. |
| 12. | royal extraction: a prince of the blood. |
| 13. | descent from a common ancestor; ancestry; lineage: related by blood. |
| 14. | recorded and respected ancestry; purebred breeding. |
| 15. | Slang. a black person, esp. a man. |
| 16. | Hunting. to give (hounds) a first sight or taste of blood. Compare flesh (def. 14). |
| 17. | to stain with blood. |
| 18. | get or have one's blood up, to become or be enraged or impassioned: Injustice of any sort always gets my blood up. |
| 19. | have someone's blood on one's head or hands, to be to blame for someone's affliction or death: Though a criminal, he had no blood on his hands. |
| 20. | in cold blood, deliberately; ruthlessly: The dictator, in cold blood, ordered the execution of all his political enemies. |
| 21. | make one's blood boil, to inspire resentment, anger, or indignation: Such carelessness makes my blood boil. |
| 22. | make one's blood run cold, to fill with terror; frighten: The dark, deserted street in that unfamiliar neighborhood made her blood run cold. |
| 23. | sweat blood. sweat (def. 37). |
| 24. | taste blood, to experience a new sensation, usually a violent or destructive one, and acquire an appetite for it: Once the team had tasted blood, there was no preventing them from winning by a wide margin. |

adjective, -er, -est, noun, adverb | 1. | having a relatively low temperature; having little or no warmth: cold water; a cold day. |
| 2. | feeling an uncomfortable lack of warmth; chilled: The skaters were cold. |
| 3. | having a temperature lower than the normal temperature of the human body: cold hands. |
| 4. | lacking in passion, emotion, enthusiasm, ardor, etc.; dispassionate: cold reason. |
| 5. | not affectionate, cordial, or friendly; unresponsive: a cold reply; a cold reception. |
| 6. | lacking sensual desire: She remained cold to his advances. |
| 7. | failing to excite feeling or interest: the cold precision of his prose. |
| 8. | unexcitable; imperturbable: cold impassivity. |
| 9. | depressing; dispiriting: the cold atmosphere of a hospital waiting room. |
| 10. | unconscious because of a severe blow, shock, etc.: I knocked him cold with an uppercut. |
| 11. | lacking the warmth of life; lifeless: When the doctor arrived, the body was already cold. |
| 12. | faint; weak: The dogs lost the cold scent. |
| 13. | (in games) distant from the object of search or the correct answer. |
| 14. | Slang. (in sports and games) not scoring or winning; ineffective: Cold shooting and poor rebounding were their undoing. |
| 15. | Art.
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| 16. | slow to absorb heat, as a soil containing a large amount of clay and hence retentive of moisture. |
| 17. | Metalworking. noting or pertaining to any process involving plastic deformation of a metal at a temperature below that at which recrystallization can occur because of the strain: cold working. |
| 18. | the relative absence of heat: Everyone suffered from the intense cold. |
| 19. | the sensation produced by loss of heat from the body, as by contact with anything having a lower temperature than that of the body: He felt the cold of the steel door against his cheek. |
| 20. | cold weather: He can't take the cold. |
| 21. | Also called common cold. a respiratory disorder characterized by sneezing, sore throat, coughing, etc., caused by an allergic reaction or by a viral, bacterial, or mixed infection. |
| 22. | with complete competence, thoroughness, or certainty; absolutely: He learned his speech cold. |
| 23. | without preparation or prior notice: She had to play the lead role cold. |
| 24. | in an abrupt, unceremonious manner: He quit the job cold. |
| 25. | Metalworking. at a temperature below that at which recrystallization can occur (sometimes used in combination): to cold-hammer an iron bar; The wire was drawn cold. |
| 26. | catch or take cold, to get or suffer from a cold: We all caught cold during that dreadful winter. |
| 27. | go cold, Slang. (in sports and games) to become unproductive or ineffective; be unable to score. |
| 28. | in cold blood. blood (def. 20). |
| 29. | in from the cold, out of a position or condition of exile, concealment, isolation, or alienation: Since the new government promised amnesty, fugitive rebels are coming in from the cold. |
| 30. | left out in the cold, neglected; ignored; forgotten: After the baby came, the young husband felt left out in the cold. Also, out in the cold. |
| 31. | throw cold water on, to disparage; disapprove of; dampen the enthusiasm of: They threw cold water on her hopes to take acting classes. |

The fluid circulating through the heart, arteries, veins, and capillaries of the circulatory system. Blood carries oxygen and nutrients to the cells of the body and removes waste materials and carbon dioxide. It is composed of plasma (mainly water, but with a mixture of hormones, nutrients, gases, antibodies, and wastes), red blood cells (which carry oxygen), white blood cells (which help combat infection), and platelets (which help the blood clot).
blood (brother)
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cold
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in cold blood
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blood (blŭd)
n.
The fluid consisting of plasma, red blood cells, white blood cells, and platelets that is circulated by the heart through the arteries and veins, carrying oxygen and nutrients to and waste materials away from all body tissues.
One of the four humors of ancient and medieval physiology, identified with the blood found in the blood vessels, and believed to cause cheerfulness.
Descent from a common ancestor; parental lineage.
cold (kōld)
n.
A viral infection characterized by inflammation of the mucous membranes lining the upper respiratory passages and usually accompanied by malaise, fever, chills, coughing, and sneezing. Also called coryza, acute rhinitis, common cold, coryza.
in cold blood
In a purposely ruthless and unfeeling manner, as in The whole family was murdered in cold blood. This expression alludes to the notion that blood is the seat of emotion and is hot in passion and cold in calm. The term therefore means not "in the heat of passion," but "in a calculated, deliberate manner." [Late 1500s]