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A hallmark is an official mark or series of marks struck on items made of metal, mostly to certify the content of noble metals—such as platinum, gold, silver and in some nations, palladium. In a more general sense, the term hallmark is used to refer to any standard of quality.
Hallmarks of aging. Aging is characterized by a progressive loss of physiological integrity, leading to impaired function and increased vulnerability to death. The hallmarks of aging are the types of biochemical changes that occur in all organisms that experience biological aging and lead to a progressive loss of physiological integrity ...
The ability to invade surrounding tissue and metastasise is a hallmark of cancer. The hallmarks of cancer were originally six biological capabilities acquired during the multistep development of human tumors and have since been increased to eight capabilities and two enabling capabilities. The idea was coined by Douglas Hanahan and Robert ...
Hallmark Cards, Inc. Hallmark Cards, Inc. is a privately held, family-owned American company based in Kansas City, Missouri. Founded in 1910 by Joyce Hall, Hallmark was one of the oldest and largest manufacturer of greeting cards in the United States. [3] In 1985, the company was awarded the National Medal of Arts.
The old hallmarks were as unique as today's logos, and disputes often arose when one company copied another's stamp. [citation needed] "The words "silver" and "sterling silver" describe a product that contains 92.5% pure silver. Silver products sometimes may be marked 925, which means that 925 parts per thousand are pure silver.
Hallmark Channel is an American cable television network owned by Hallmark Media, a subsidiary of Hallmark Cards. The channel broadcasts family-oriented general entertainment programming, including television series and made-for-TV movies. The channel has its origins in the religious broadcasters American Christian Television System (ACTS) and ...
Hallmark Hall of Fame. Hallmark Hall of Fame, originally called Hallmark Television Playhouse, is an anthology program on American television, sponsored by Hallmark Cards, a Kansas City –based greeting card company. It is the longest-running prime-time series in the history of television; it began airing in 1951 and aired on network ...
Hallmark holiday. In the United States (and elsewhere), a Hallmark holiday is a holiday that is perceived to exist primarily for commercial purposes rather than to commemorate a traditionally or historically significant event.