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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]
Farlex Partner Medical Dictionary © Farlex 2012

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.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
References in periodicals archive ?
Prior to this project, Practical Action had already completed field research with an initial smoke hood design.
Brent Blue, M.D., pilot and cofounder of Aeromedix (and the source for the Safe Escape smoke hood), says, "Smoke in a cockpit is so noxious, it's incapacitating.
Safety Equipment Association (ISEA), had this to say in response to the ANSI/ISEA 110-2003 standard and the rising interest in smoke hoods: "Many consumers concerned about having time to escape during building fires have bought RPEDs in the last several years.
The house has a large entrance hall, living room with generous inglenook and specially-made heavy iron smoke hood, dining room with French doors, study and family room next to the long, fitted kitchen.
It has also been working with a group of Maasai women in Kenya to develop a smoke hood that cuts the health-affecting indoor pollution from cooking fires.
fire boots - which go inside the trousers for speedy changing - trousers with braces, and a tunic with fluorescent visibility stripesl smoke hood
Prison officers used a misting machine to put the fire out and then went into the cell, wearing protective smoke hoods.
There was also an opportunity to complete a slide descent and they looked at how they would fight fires on board an aircraft and had the opportunity to use real life firefighting equipment such as smoke hoods and fire extinguishers.
For many years after the August 1985 Manchester disaster, there was a clamour for passenger smoke hoods to be introduced.