a silver-white metallic element of the platinum group that resembles platinum; occurs in some copper and nickel ores; does not tarnish at ordinary temperatures and is used (alloyed with gold) in jewelry
a score in American football; a player is tackled behind his own goal line
a safe place; "He ran to safety"
the state of being certain that adverse effects will not be caused by some agent under defined conditions; "insure the safety of the children"; "the reciprocal of safety is risk"
fabric dyed with splotches of green and brown and black and tan; intended to make the wearer of a garment made of this fabric hard to distinguish from the background
disguise by camouflaging; exploit the natural surroundings to disguise something; "The troops camouflaged themselves before they went into enemy territory"
line thrown from a vessel that people can cling to in order to save themselves from drowning
line that raises or lowers a deep-sea diver
support that enables people to survive or to continue doing something (often by providing an essential connection); "the airlift provided a lifeline for Berlin"; "she offered me a lifeline in my time of grief"
a term formerly used to mean taking on the gender role of the opposite sex
(counterpoint) a variation of a melody or part in which ascending intervals are replaced by descending intervals and vice versa
(genetics) a kind of mutation in which the order of the genes in a section of a chromosome is reversed
the layer of air near the earth is cooler than an overlying layer
a chemical process in which the direction of optical rotation of a substance is reversed from dextrorotatory to levorotary or vice versa
abnormal condition in which an organ is turned inward or inside out (as when the upper part of the uterus is pulled into the cervical canal after childbirth)