noun \ˈhed\

Definition of HEAD

:  the upper or anterior division of the animal body that contains the brain, the chief sense organs, and the mouth
a :  the seat of the intellect :  mind <two heads are better than one>
b :  a person with respect to mental qualities <let wiser heads prevail>
c :  natural aptitude or talent <a good head for figures>
d :  mental or emotional control :  poise <a level head>
e :  headache
:  the obverse of a coin —usually used in plural
a :  person, individual <count heads>
b plural head :  one of a number (as of domestic animals)
a :  the end that is upper or higher or opposite the foot <the head of the table> <head of a sail>
b :  the source of a stream
c :  either end of something (as a drum) whose two ends need not be distinguished
:  director, leader: as
a :  headmaster
b :  one in charge of a division or department in an office or institution
a :  capitulum 2
b :  the foliaged part of a plant especially when consisting of a compact mass of leaves or close fructification <a head of lettuce>
a :  the leading element of a military column or a procession
b :  headway
a :  the uppermost extremity or projecting part of an object :  top
b :  the striking part of a weapon, tool, or implement
c :  the rounded proximal end of a long bone (as the humerus)
d :  the end of a muscle nearest the origin
e :  the oval part of a printed musical note
a :  a body of water kept in reserve at a height; also :  the containing bank, dam, or wall
b :  a mass of water in motion
a :  the difference in elevation between two points in a body of fluid
b :  the resulting pressure of the fluid at the lower point expressible as this height; broadly :  pressure of a fluid
a :  the bow and adjacent parts of a ship
b :  a ship's toilet; broadly :  toilet 3
:  the approximate length of the head of a horse <won by a head>
:  the place of leadership, honor, or command <at the head of her class>
a (1) :  a word or series of words often in larger letters placed at the beginning of a passage or at the top of a page in order to introduce or categorize (2) :  a separate part or topic
b :  a portion of a page or sheet that is above the first line of printing
:  the foam or scum that rises on a fermenting or effervescing liquid (as beer)
a :  the part of a boil, pimple, or abscess at which it is likely to break
b :  culminating point of action :  crisis <events came to a head>
a :  a part or attachment of a machine or machine tool containing a device (as a cutter or drill); also :  the part of an apparatus that performs the chief function or a particular function
b :  an electromagnet used as a transducer in magnetic recording for recording on, reading, or erasing a magnetic medium (as tape or a disk)
:  an immediate constituent of a construction that can have the same grammatical function as the whole (as man in an old man, a very old man, or the man in the street)
a :  one who uses a drug —often used in combination <pothead>
b :  a devoted enthusiast :  aficionado —often used in combination <computerhead>
often vulgar :  fellatio, cunnilingus —usually used with give
by the head
:  drawing the greater depth of water forward
off one's head
out of one's head
:  delirious
over one's head
:  beyond one's comprehension or competence <the most awful intellectual detail, all of it over my head — E. B. White>
:  so as to pass over one's superior standing or authority <went over my head to complain>

Examples of HEAD

  1. She patted the dog on the head.
  2. He nodded his head in agreement.
  3. The ceiling's low—watch your head!

Origin of HEAD

Middle English hed, from Old English hēafod; akin to Old High German houbit head, Latin caput
First Known Use: before 12th century

Related to HEAD

bean, block [slang], dome, mazard (or mazzard) [chiefly dialect], nob, noddle, noggin, noodle, nut [slang], pate, poll
bottom, nadir, rock bottom

Other Anatomy Terms

bilateral symmetry, carotid, cartilage, dorsal, entrails, prehensile, renal, solar plexus, supine, thoracic, ventral



Definition of HEAD

:  of, relating to, or intended for the head
:  principal, chief <head cook>
:  situated at the head
:  coming from in front <head sea>

Examples of HEAD

  1. <as head editor at the TV station for 17 years, he has hired and fired innumerable staff members>

First Known Use of HEAD

before 12th century

Other Anatomy Terms

bilateral symmetry, carotid, cartilage, dorsal, entrails, prehensile, renal, solar plexus, supine, thoracic, ventral



: to be the leader of (something)

: to be first on (a list)

: to go in a specified direction or toward a specified place

Full Definition of HEAD

transitive verb
:  behead
a :  to put a head on :  fit a head to <head an arrow>
b :  to form the head or top of <tower headed by a spire>
:  to act as leader or head to <head a revolt>
a :  to get in front of so as to hinder, stop, or turn back
b :  to take a lead over (as a racehorse) :  surpass
c :  to pass (a stream) by going round above the source
a :  to put something at the head of (as a list)
b :  to stand as the first or leading member of <heads the list of heroes>
:  to set the course of <head a ship northward>
:  to drive (as a soccer ball) with the head
intransitive verb
:  to form a head <this cabbage heads early>
:  to point or proceed in a certain direction <headed south>
:  to have a source :  originate

Examples of HEAD

  1. The group was headed by the church pastor.
  2. He was accused of heading the revolt.
  3. I hopped in the car and headed down the street.
  4. After lunch, we headed back to the office.
  5. She headed out early this morning.
  6. The birds have already started heading south for the winter.
  7. The forward headed the ball into the goal.

First Known Use of HEAD

14th century


noun \ˈhed\   (Medical Dictionary)

Medical Definition of HEAD

:  the division of the human body that contains the brain, the eyes, the ears, the nose, and the mouth; also :  the corresponding anterior division of the body of various animals including all vertebrates, most arthropods, and many mollusks and worms
:  a projection or extremity especially of an anatomical part: as a :  the rounded proximal end of a long bone (as the humerus) b :  the end of a muscle nearest the origin c :  the anterior end of an invertebrate :  scolex
:  the part of a boil, pimple, or abscess at which it is likely to break
:  the end of a lipid molecule that consists of a polar group and is regarded as being opposite to the tail
head adjective


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