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Comprehensive
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hazmat materials that are hazardous to human life or the environment, such as asbestos, radioactive materials, explosive materials, and poisons (often used as a modifier of a noun).
hazy marked or obscured by haze; misty. [2 definitions]
HB abbreviation of "House Bill," in the U.S., a proposed law in consideration by the House of Representatives.
HBCU abbreviation of "historically Black college or university."
H-bomb a nuclear bomb with extremely destructive explosive power, that releases energy by the fusing of hydrogen nuclei; hydrogen bomb.
HD abbreviation of "high definition," used as a shortened form of "HDTV" ("high definition television").
HDTV abbreviation of "high definition television," a form of digital television that broadcasts images with greater detail than conventional television.
He symbol of the chemical element helium.
he1 the male human being or animal that is under discussion or was recently referred to. [3 definitions]
he2 the name of the fifth letter of the Hebrew alphabet.
-head state or condition of being; -hood.
head the body part of a human being or animal that contains the brain or primary nerve center and the facial features. [20 definitions]
headache a pain in the head. [2 definitions]
head and shoulders above far better than or superior to.
headband a band worn around the head, usu. in order to restrain the hair or to absorb perspiration.
headboard an upright board or panel that forms the head of something, esp. of a bed.
headcheese a jellied loaf made from the inner parts of the head of a hog.
head cold a respiratory infection characterized by inflammation of the nasal mucous membranes, nasal congestion, and discharge of mucus; common cold.
headdress an often elaborate covering or decoration for the head.
headed having a head or temperament of (such) a type (usu. used in combination). [2 definitions]
header a person or machine that puts heads on something, such as nails, rivets, and the like. [5 definitions]