WordNet

to go or travel towards; "where is she heading"; "We were headed for the mountains"
the length or height based on the size of a human or animal head; "he is two heads taller than his little sister"; "his horse won by a head"
the pressure exerted by a fluid; "a head of steam"
the tip of an abscess (where the pus accumulates)
(nautical) a toilet on board a boat or ship
(usually plural) the obverse side of a coin that usually bears the representation of a persons head; "call heads or tails!"
a projection out from one end; "the head of the nail", "a pinhead is the head of a pin"
a single domestic animal; "200 head of cattle"
the striking part of a tool; "the head of the hammer"
the upper part of the human body or the front part of the body in animals; contains the face and brains; "he stuck his head out the window" (同)caput
a person who is in charge; "the head of the whole operation" (同)chief, top_dog
(grammar) the word in a grammatical constituent that plays the same grammatical role as the whole constituent (同)head word
a rounded compact mass; "the head of a comet"
a user of (usually soft) drugs; "the office was full of secret heads"
an individual person; "tickets are $5 per head"
that part of a skeletal muscle that is away from the bone that it moves
the foam or froth that accumulates at the top when you pour an effervescent liquid into a container; "the beer had a large head of foam"
the front of a military formation or procession; "the head of the column advanced boldly"; "they were at the head of the attack"
the rounded end of a bone that fits into a rounded cavity in another bone to form a joint; "the head of the humerus"
the top of something; "the head of the stairs"; "the head of the page"; "the head of the list"
be the first or leading member of (a group) and excel; "This student heads the class" (同)head up
be in charge of; "Who is heading this project?" (同)lead
be in the front of or on top of; "The list was headed by the name of the president"
form a head or come or grow to a head; "The wheat headed early this year"
remove the head of; "head the fish"
take its rise; "These rivers head from a mountain range in the Himalayas"
relevant relation or interconnection; "those issues have no bearing on our situation"
(of a structural member) withstanding a weight or strain
dignified manner or conduct (同)comportment, presence, mien
a rotating support placed between moving parts to allow them to move easily
the direction or path along which something moves or along which it lies (同)heading, aim
of leafy vegetables; having formed into a head; "headed cabbages"
having a head of a specified kind or anything that serves as a head; often used in combination; "headed bolts"; "three-headed Cerberus"; "a cool-headed fighter pilot"
having a heading or caption; "a headed column"; "headed notepaper"
having a heading or course in a certain direction; "westward headed wagons"
a grammatical number category referring to two items or units as opposed to one item (singular) or more than two items (plural); "ancient Greek had the dual form but it has merged with the plural form in modern Greek"
the 5th letter of the Hebrew alphabet

PrepTutorEJDIC

(顔を含めた)『頭』,頭部,首;(髪の生えている部分の)頭 / 『頭脳』,頭の働き,知力,才能;理性 / 『長』,指導者,支配者 / (ある物の)頭,上部,先端,先頭 / (川・泉の)源,水源 / (人・動物の)頭数,一人,1頭 / 『首席』,首位 / 《複数形で》(頭像のある)貨幣の表 / 項目,表題(新聞の)見出し / 《米俗》マリファナ常用者 / 長の,指導者の / …‘の'先頭に立つ,‘を'率いる;…‘の'長である / (…の方へ)…‘を'向ける《+『名』+『for』(『toward』)+『名』》 / (サッカーで)〈ボール〉‘を'頭で受ける,ヘディングする / (…に向かって)進む《+for(toward)+名》・「give a head」で「オーラルセックスをする・相手の性器をなめる」
〈U〉『態度』,ふるまい / 〈C〉〈U〉(…に対する)『関係』,関連《+『on』(『upon』)+『名』》 / 〈U〉忍耐,がまん / 〈C〉《複数形で》『方角』,方位 / 〈U〉子を産むこと,出産;実を結ぶこと / 《複数形で》(機械の)軸受け,ベアリング
頭[部]のある,見出しのある / (キャベツなどが)結球した / 《複合語を作って》「…の頭を持つ」「頭が…の」の意を表す
二つの部分(2個)から成る / 二重の性質がある
彼は,彼が / 《指す人の性別が分からないか,または分かる必要のない場合に》その人,あの人,自分 / 《he who(that)の形で》《文》…するものはだれでも / (動物の)おす(雄)
鬼ごっこ(tag,tick,tig)

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1. 非外傷性股関節骨壊死（大腿骨頭の無血管壊死）の治療treatment of nontraumatic hip osteonecrosis avascular necrosis of the femoral head in adults [show details]
… patients with osteonecrosis, total hip arthroplasty removes necrotic bone from the femoral head and replaces it with a prosthesis Total hip arthroplasty is required for patients with advanced collapse. Techniques …
2. 頭頚部癌の長期生存者に対するアプローチの概要overview of approach to long term survivors of head and neck cancer [show details]
…a diagnosis of head and neck cancer are covered separately. Head and neck cancer, mostly squamous cell carcinoma, are those arising from one of five anatomic regions of the head and neck : The …
3. 全人工股関節置換術total hip arthroplasty [show details]
…arthroplasties (THAs) consist of a femoral component, an acetabular component, and a bearing surface. Most systems are modular with a separate femoral stem, femoral head, acetabular liner, and acetabular …
4. 頭頸部癌に対する治療の概要overview of treatment for head and neck cancer [show details]
… Most head and neck cancers begin in the mucosal surfaces of the upper aerodigestive tract, and these are predominantly squamous cell carcinomas. An overview of treatment for head and neck squamous… obturator prosthesis. This requires the skills of a dedicated orofacial prosthodontist. Sometimes, prosthetic appliances augment the primary reconstruction. For example, a palatal drop prosthesis can improve…
5. 頭頚部癌の診断および病期分類の概要overview of the diagnosis and staging of head and neck cancer [show details]
… characterization offered by dual-energy and spectral CT may enhance the accuracy of CT for evaluation of tumor extent and staging . In one review of 81 patients with head and neck cancer, CT resulted …

English Journal

Relative Head Size Increase Using an Anatomic Dual Mobility Hip Prosthesis Compared to Traditional Hip Arthroplasty: Impact on Hip Stability.

D'Apuzzo MR1, Nevelos J2, Yeager A1, Westrich GH1.
The Journal of arthroplasty.J Arthroplasty.2014 Jun 5. pii: S0883-5403(14)00293-9. doi: 10.1016/j.arth.2014.04.035. [Epub ahead of print]
Smaller head sizes and head/cup ratios make cups smaller than 50mm and larger than 58mm, more prone to dislocation. Using computer modeling, we compared average head sizes and posterior horizontal dislocation distance (PHDD) in two 78-patient matched cohorts. Cup sizes were small (≤50mm) or large
PMID 24997653

Does dual-mobility cup geometry affect posterior horizontal dislocation distance?

Heffernan C1, Banerjee S, Nevelos J, Macintyre J, Issa K, Markel DC, Mont MA.
Clinical orthopaedics and related research.Clin Orthop Relat Res.2014 May;472(5):1535-44. doi: 10.1007/s11999-014-3469-1. Epub 2014 Jan 24.
BACKGROUND: Dual-mobility acetabular cups have been marketed with the purported advantages of reduced dislocation rates and improvements in ROM; however, the relative efficacies of these designs in terms of changing joint stability via ROM and dislocation distance have not been thoroughly evaluated.
PMID 24464508

Dual mobility retentive acetabular liners and wear: surface analysis of 40 retrieved polyethylene implants.

Adam P1, Farizon F2, Fessy MH2.
Orthopaedics & traumatology, surgery & research : OTSR.Orthop Traumatol Surg Res.2014 Feb;100(1):85-91. doi: 10.1016/j.otsr.2013.12.011. Epub 2014 Jan 18.
PURPOSE OF THE STUDY: Dual mobility systems with retentive acetabular liners have been used in clinical practice for total hip arthroplasty since 1976. The dual mobility system preserves a wide range of motion while providing greater stability. This study measured wear on the concave and convex surf
PMID 24447655