protection tribute | payment extorted by gangsters on threat of violence, every store in the neighborhood had to pay him protection |
protection | the activity of protecting someone or something, the witnesses demanded police protection |
self-defense self-defence self-protection | the act of defending yourself |
positron emission tomography PET | using a computerized radiographic technique to examine the metabolic activity in various tissues (especially in the brain) |
protection trade protection | the imposition of duties or quotas on imports in order to protect domestic industry against foreign competition, he made trade protection a plank in the party platform |
auspices protection aegis | kindly endorsement and guidance, the tournament was held under the auspices of the city council |
emission emanation | the act of emitting, causing to flow forth |
field-emission microscope | electron microscope used to observe the surface structure of a solid |
positron emission tomography scanner PET scanner | a tomograph that produces cross-sectional Xays of metabolic processes in the body |
protective covering protective cover protection | a covering that is intend to protect from damage or injury, they had no protection from the fallout, wax provided protection for the floors |
sun protection factor SPF | the degree to which a sunscreen protects the skin from the direct rays of the sun |
equal protection of the laws | a right guaranteed by the Fourteenth Amendment to the US Constitution and by the due-process clause of the Fifth Amendment |
emission | the occurrence of a flow of water (as from a pipe) |
Environmental Protection Agency EPA | an independent federal agency established to coordinate programs aimed at reducing pollution and protecting the environment |
emission spectrum | spectrum of electromagnetic radiation emitted by a self-luminous source |
infrared infrared light infrared radiation infrared emission | electromagnetic radiation with wavelengths longer than visible light but shorter than radio waves |
radio wave radio emission radio radiation | an electromagnetic wave with a wavelength between . cm to , m |
security protection | defense against financial failure, financial independence, his pension gave him security in his old age, insurance provided protection against loss of wages due to illness |
discharge emission expelling | any of several bodily processes by which substances go out of the body, the discharge of pus |
emission | the release of electrons from parent atoms |
field emission | the emission of electrons that are stripped from parent atoms by a high electric field |
nocturnal emission | ejaculation during sleep (usually during a dream) |
photoelectric emission | the release or absorption of quanta above a certain energy level |
secondary emission | the emission of electrons from a surface that is bombarded by higher energy primary electrons |
thermionic emission thermal emission | the emission of electrons from very hot substances |
protection shelter | the condition of being protected, they were huddled together for protection, he enjoyed a sense of peace and protection in his new home |
discharge emission | a substance that is emitted or released |
greenhouse gas greenhouse emission | a gas that contributes to the greenhouse effect by absorbing infrared radiation |