| Subject | Catalan | English |
| comp., MS | capa d'adaptació ATM | ATM adaptation layer (The layer of the asynchronous transfer mode (ATM) protocol stack that parses data into the payload portion of the ATM cell for transport across an ATM network) |
| load.equip. | capa de rodolament | running surface |
| environ. | capa del sòl | soil layer Distinctive successive layers of soil produced by internal redistribution processes. Conventionally the layers have been divided into A, B and C horizons. The A horizon is the upper layer, containing humus and is leached and/or eluviated of many minerals. The B horizon forms a zone of deposition and is enriched with clay minerals and iron/aluminium oxides from the A layer. The C layer is the parent material for the present soil and may be partially weathered rock, transported glacial or alluvial material or an earlier soil |
| environ. | capa d'inversió | inversion layer The atmosphere layer through which an inversion occurs |
| environ. | capa d'ozó | ozone layer The general stratum of the upper atmosphere in which there is an appreciable ozone concentration and in which ozone plays an important part in the radiative balance of the atmosphere |
| environ. | capa freàtica | water table Water that occupies pores, cavities, cracks and other spaces in the crustal rocks. It includes water precipitated from the atmosphere which has percolated through the soil, water that has risen from deep magmatic sources liberated during igneous activity and fossil water retained in sedimentary rocks since their formation. The presence of groundwater is necessary for virtually all weathering processes to operate. Phreatic water is synonymous with groundwater and is the most important source of any water supply |
| environ. | esgotament de la capa d'ozó | ozone layer depletion The fragile shield of ozone is been damaged by chemicals released on earth. The main chemicals that are depleting stratospheric ozone are chlorofluorocarbons which are used in refrigerators, aerosols, and as cleaners in many industries, and halons, which are used in fire extinguishers. The damage is caused when these chemicals release highly reactive forms of chlorine and bromine. Over the past 30 years ozone levels over parts of Antarctica have dropped by almost 40% during some months and a "hole" in ozone concentrations is clearly visible in satellite observations |
| environ. | protecció de la capa freàtica | water table protection Water table is inherently susceptible to contamination from landuse activities. Remediation is very expensive and often impractical. Prevention of contamination is therefore critical in effective groundwater management |
| comp., MS | Seguretat de la capa de transport | Transport Layer Security (A protocol that provides communications privacy and security between two applications communicating over a network. TLS encrypts communications and enables clients to authenticate servers and, optionally, servers to authenticate clients. TLS is a more secure version of the Secure Sockets Layer (SSL) protocol) |