Combustion Air

Business / Construction / Combustion Air: The duct work installed to bring fresh, outside air to the furnace and/or hot water heater. Normally 2 separate supplies of air are brought in: One high and One low.
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Other Words for Air

Air Noun Synonyms: atmosphere, ambience, aura, climate, feeling, sense, mood, quality
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Hair Side

Entertainment / Literature / Hair Side: The side of a sheet or parchment or vellum that once carried the animal's hair. It is generally darker and smoother than the flesh side, and it may carry markings such as pores or traces of hair folli MORE

Hair Shaft

Science / Biology / Hair Shaft: The portion of a hair that extends above the skins surface. MORE

Haircut

Business / Finance / Haircut: Fifth letter of a Nasdaq stock symbol specifying that the issue is the second preferred bond of the company. MORE

Hairpiece

Entertainment / Golf / Hairpiece: Another phrase for hitting the ball fat, or hitting the ground first - if one were able to freeze time at the right instant the divot might be laying over the top of the ball, reminiscent of a hairpie MORE

Helmet Hair

Technology / Motorcycle / Helmet Hair: Wearing a motorcycle helmet tends to mess up one's hair. Removing the helmet usually leaves hair sticking out in all directions. This is called helmet hair. It can be minimized by use of special skull MORE

Hairpin

Technology / Motorcycle / Hairpin: A very slow, tight, sometimes 180-degree, turn. MORE