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1. The anterior part of the integument of soft ticks (family Argasidae) that extends over the capitulum and forms the roof of the camerostome.
2. An expanded, covering structure that resembles the hood of robe or cloak in shape or function, such as the extensor digital expansions that overly the dorsal aspect of the heads of the metacarpals.
[O.E. hōd, hat]

hor·i·zon·tal lam·i·nar flow hood

(hōr'i-zon'tăl lam'i-năr' flō hud)
A laminar flow hood in which the air is pushed through a filter horizontally toward the user to maintain a sterile environment.

lam·i·nar flow hood

(lam'i-năr flō hud)
An enclosure in which air flow is directed so as to prevent contamination of sterile materials by airborne organisms.
Synonym(s): hood.

ver·ti·cal lam·in·ar flow hood

(vĕr'ti-kăl lam'i-năr flō hud)
A laminar flow hood in which the air is pushed through a filter vertically to protect the user from exposure to harmful materials.


an item of horse clothing. A cloth cover for the head; with eye and ear holes.

long hood
covers the head and neck to the shoulders.
References in periodicals archive ?
The addition of Preci-Dip's QPL Listed and Hoodless Contacts further expands the company's robust product base.
Kurtenbach K, Peacey M, Rijpkema SGT, Hoodless AN, Nuttall PA, Randolph SE.
Dr Hoodless added: "We are very grateful to all the surveyors who have already taken part in our annual woodcock surveys and would urge you to continue.
Hoodless pleaded guilty to five charges of theft by employee.
Donald Hoodless, Chairman of the Housing Executive, said: I very much welcome the Minister s commitment to investment in our 32 tower blocks.
And Dame Elisabeth Hoodless, head of charity Community Service Volunteers, said the Big Society was being undermined by "draconian" cuts which could "destroy the volunteer army.
The boards of UK financial group Astaire (LON:ASTR) and stockbroker Hoodless Brennan Holdings, or HBH, announced today an agreement on the offer by Astaire's unit Astaire Securities to buy the entire capital of HBH.
Campaigner Dame Elisabeth Hoodless said: "Eleven million people tell researchers they would volunteer if asked.
Brendan Barber, TUC General Secretary; Dame Elisabeth Hoodless, Executive Director, Community Service Volunteers; Kevin Curley, Chief Executive, National Association for Voluntary and Community Action; Justin Davis Smith, Chief Executive, Volunteering England
Cutting Edge tells the story of Charlene Lunnon and Lisa Hoodless who were abducted in 1999.
Cutting Edge tells the story of Charlene Lennon and Lisa Hoodless who were abducted in 1999
Dame Elisabeth Hoodless, executive director of CSV, the UK's largest volunteering charity, said: "The challenge is to generate opportunities for young people to participate in their communities.