(objet round) ball. une boule de cristal a crystal ball. roulÃ© en boule curled up in a ball. (pour jouer) bowl. jouer aux boules to play bowls. * se mettre en boule to fly off the handle, to blow one's top. perdre la boule to go off one's rocker *. boule de gomme. nf (=bonbon) gum.
Communications security is the discipline of preventing unauthorized interceptors from accessing telecommunications in an intelligible form, while still delivering content to the intended recipients. In the United States Department of Defense culture, it is often referred to by the abbreviation COMSEC. The field includes cryptographic security, transmission security, emissions security and physical security of COMSEC equipment and associated keying material. COMSEC is used to protect both classified and unclassified traffic on military communications networks, including voice, video, and data.
talc. A white, greenish, or gray mineral that is a silicate of magnesium, usually occurring as massive mica-like flakes. It has a soft, soapy texture, and is used in face powder and talcum powder, for coating paper, and as a filler in paints and plastics.Talc is the mineral used to represent a hardness of 1 on the Mohs scale.alc. n. 1. See talcum powder. 2. (Minerals) a white, grey, brown, or pale green mineral, found in metamorphic rocks. It is used in the manufacture of talcum powder and electrical insulators. Composition: hydrated magnesium silicate.