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21Head-Royce School — Infobox Private School name = Head Royce School image caption = Official Logo of Head Royce School motto = Scholarship, Diversity, Citizenship established = 1887 type = Private religion = head name = Head of School head = Paul D. Chapman city =… …
22Head and neck cancer — ] Smokeless tobacco is an etiologic agent for oral and pharyngeal cancers. [cite journal |author=Winn D |title=Smokeless tobacco and aerodigestive tract cancers: recent research directions |journal=Adv Exp Med Biol |volume=320 |issue=… …
23Head-up display — A head up display, or HUD, is any transparent display that presents data without requiring the user to look away from his or her usual viewpont. The origin of the name stems from the user being able to view information with their head up and… …
24Head of government — This article focuses on the cases where the head of government is a separate office from the head of state. For information about countries where the two roles are combined, see Presidential system. The heads of government of five members of the… …
25Head louse — This article is about the animal. For the disease known as head lice, see Pediculosis capitis. Head lice Scientific classification Kingdom: Animalia …
26Head Start — For the Australian television series, see Head Start (TV series) Head Start is a program of the United States Department of Health and Human Services that provides comprehensive education, health, nutrition, and parent involvement services to low …
27Head transplant — A head transplant is a surgical operation involving the grafting of an organism s head onto the body of another. It should not be confused with another, hypothetical, surgical operation, the brain transplant. Head transplantation involves… …
28Head Cases — infobox television show name = Head Cases caption = The cast of Head Cases . format = Comedy drama runtime = approx. 0:43 creator = Bill Chais starring = Chris O Donnell Adam Goldberg Krista Allen Richard Kind country = USA network = FOX (U.S.)… …
29Well kill — A well kill refers to the operation of placing a column of heavy fluid into a well bore in order to prevent the flow of reservoir fluids without the need for pressure control equipment at the surface. It works on the principle that the weight of… …
30Head Games (Doctor Who) — Doctorwhobook title=Head Games series=Virgin New Adventures number= 43 featuring=Seventh Doctor Bernice, Chris, Roz, Mel, Ace writer=Steve Lyons publisher=Virgin Books isbn= ISBN 0 426 20454 9 pages= date=October 1995 preceding=Toy Soldiers… …
