head (redirected from knock people's heads together)

head

See read/write head and HDA.

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head

1. the upper or front part of the body in vertebrates, including man, that contains and protects the brain, eyes, mouth, and nose and ears when present

2. the corresponding part of an invertebrate animal

3. the froth on the top of a glass of beer

4. Botany

a. a dense inflorescence such as that of the daisy and other composite plants

b. any other compact terminal part of a plant, such as the leaves of a cabbage or lettuce

5. the pus-filled tip or central part of a pimple, boil, etc.

6. the source or origin of a river or stream

7. a headland or promontory, esp a high one

8. the obverse of a coin, usually bearing a portrait of the head or a full figure of a monarch, deity, etc.

9. Nautical

a. the front part of a ship or boat

b. (in sailing ships) the upper corner or edge of a sail

c. the top of any spar or derrick

d. any vertical timber cut to shape

10. the taut membrane of a drum, tambourine, etc.

11. 

a. the height of the surface of liquid above a specific point, esp when considered or used as a measure of the pressure at that point

b. pressure of water, caused by height or velocity, measured in terms of a vertical column of water

c. any pressure

12. Slang

a. a person who regularly takes drugs, esp LSD or cannabis

b. (in combination): an acid head

13. a device on a turning or boring machine, such as a lathe, that is equipped with one or more cutting tools held to the work by this device

14. See cylinder head

15. an electromagnet that can read, write, or erase information on a magnetic medium such as a magnetic tape, disk, or drum, used in computers, tape recorders, etc.

16. Informal short for headmaster, headmistress

17. 

a. the head of a horse considered as a narrow margin in the outcome of a race (in the phrase win by a head)

b. any narrow margin of victory (in the phrase (win) by a head)

18. Informal short for headache

19. Curling the stones lying in the house after all 16 have been played

20. Bowls the jack and the bowls that have been played considered together as a target area

21. against the head Rugby from the opposing side's put-in to the scrum

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Head

Edith. 1907--81, US dress designer: won many Oscars for her Hollywood film costume designs

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head [hed]

(anatomy)

The region of the body consisting of the skull, its contents, and related structures.

Proximal end of a long bone.

(astronomy)

coma

(botany)

A dense cluster of nearly sessile flowers on a very short stem.

(building construction)

The upper part of the frame on a door or window.

(computer science)

A device that reads, records, or erases data on a storage medium such as a drum or tape; examples are a small electromagnet or a sensing or punching device.

(electronics)

The photoelectric unit that converts the sound track on motion picture film into corresponding audio signals in a motion picture projector.

(engineering)

The end section of a plastics blow-molding machine in which a hollow parison is formed from the melt.

The section of a shell-and-tube heat exchanger from which fluid from the tube bundle is discharged.

(engineering acoustics)

cutter

(fluid mechanics)

pressure head

(geography)

headland