XXX

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XXX, XXXX, XXXXX

[fôreks′, fīveks′]
the designations for abnormal sex chromosome complements in the human female in which there are, respectively, three, four, or five instead of the normal two X chromosomes so that each somatic cell contains a total of 47, 48, or 49 chromosomes. Although there is no consistent phenotype associated with such aberrations, the risk of congenital anomalies and mental retardation in the affected individual increases significantly as the number of X chromosomes increases.

XXX

adjective Popular slang for X-rated.

XXX

symbol for a chromosomal aberration found in mares and cows in which there is infertility because of ovarian hypoplasia.
References in periodicals archive ?
Twenty Thirty Forty' follows the story of Jane Caruso who, after the tragic loss of her husband, is told she must remarry if she wishes to secure her place in the family business.
Thirty By Thirty was a gallant runner-up, albeit some two lengths off the winner who clocked 24.
Thirty Seconds To Mars follow their triumphant Download set with the release of the new single Closer To The Edge.
Thirty two is seen as the best age to start in a new profession, and the recession further encouraged workers to change direction.
The properties include the Sutton Hotel, Hotel 57 and Thirty Thirty.
If you're way younger than thirty you may well be stroking the flawless skin on your chin and wondering, "What's the big deal with everybody trying to be young?
The Thirty Thirty Hotel - which bills itself as The Big Apple's "bestkept secret" - was so bad, with drunks hanging about and rubbish strewn everywhere, she asked to be moved.
Such changes, if real, might well be associated with the current increase in hurricane intensity over, say, the past thirty years.
The project calls for the relocation to the Mall of thirty of the dozens of national monuments marking massacres that occurred during the "Indian Wars" of the late eighteenth century and the early nineteenth.
One study found that children who participate in gardening as little as thirty minutes per week eat more vegetables.
Barbara, my wife of thirty-eight years, taught business education in the public schools for thirty-two years, with thirty of those years at Dudley High School in Greensboro.
To my surprise, volunteering for two summer camps meant not only that I had to quickly learn how to teach English to teenagers and little kids, but I also needed to re-learn how to play games like checkers and "Duck, Duck, Goose"--which I surely haven't played in some thirty years.