n. Provision of several media (e.g. Audio, video, and graphics) on one computer system, with cross-references from one to another (often attrib.: hypermedia database).
HYPERSONIC
adj. - of speeds of more than five times that of sound.
- of sound-frequencies above about a thousand million hertz.
HYPODERMIC
—adj. - of the area beneath the skin.
- a injected beneath the skin. B (of a syringe, etc.) Used to do this. —n. Hypodermic injection or syringe. [from *hypo-, greek derma skin]
HYPOTENUSE
n. Side opposite the right angle of a right-angled triangle. [greek, = subtending line]
HYPOTHESIS
n. (pl. -theses) proposition or supposition made as the basis for reasoning or investigation. [greek, = foundation]
HYSTERESIS
n. Phenomenon whereby changes in an effect lag behind changes in its cause. [greek husteros coming after]
HYSTERICAL
adj. - of or affected with hysteria.
- uncontrollably emotional.
- colloq. Extremely funny. hysterically adv.
HABERDASHER
n. Dealer in dress accessories and sewing-goods. haberdashery n. (pl. -ies). [probably anglo-french]
HAEMATOLOGY
n. (us hem-) the study of the blood. haematologist n.
HAEMOGLOBIN
n. (us hem-) oxygen-carrying substance in the red blood cells of vertebrates. [from *globulin]
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A cat will clean itself with paw and tongue after a dangerous experience or when it has fought with another cat. This is an attempt by the animal to soothe its nerves by doing something natural and instinctive.