That... u gotta search "Star Trek Terms" in Google. 
Show me the
meanings....
Vulcans
Humanoid race native to planet Vulcan, of which Mr. Spock is a
member. Vulcans were once a passionate , violent people whose
civilization was torn by terrible wars. The ancient philosopher
Surak, revered as the father of Vulcan civilization, led his people
some 2,000 years ago to reject their emotions in favor of a
philosophy that embraced pure logic.
Vulcan society is now based entirely on logic and any trappings of
emotion are considered to be in extremely poor taste. One group did
not accept Surak's teachings and instead left Vulcan to found the
warrior Romulan Star Empire. In the distant past, Vulcans killed to
win their mates. Even in the present, Vulcans revert to their
ancient mating rituals, apparently the price these people must pay
for totally suppressing their natural emotions.
When Vulcan children are about seven, their children select a
future mate, and the two children are joined in a ceremony that
links them telepathically. When the children come of age, they are
compelled to join together for the marriage rituals. The time of
mating, Pon farr, is when stoically logical Vulcans pay for their
rigid control by experiencing a period of total emotional abandon.
In adults, Pon farr comes once every seven years. Because planet
Vulcan has a higher gravity than Earth and its atmosphere is
thinner, Vulcans in an Earth-normal environment demonstrate greater
physical strength and more acute hearing than humans.
The intensity of the Vulcan sun caused the Vulcans to evolve a
secondary eyelid to protect the retina. A Vulcan's heart is where
the human liver is. When injured, Vulcans concentrate their
strength, blood and antibodies onto the injured organs in a type of
self-induced hypnosis. Certain elements of Vulcan prehistory
suggest that the Vulcan race may have originated with colonists
from another planet, possibly humanoids from Sargon's planet
500,000 years ago. Vulcans have telepathic ability, as practiced in
the Vulcan mind-meld.
