| Subject | English | Irish |
| transp. | circular arc aerofoil | aereiteog le stua ciorclach |
| transp. | circular arc aerofoil | aereiteog stua ciorclach |
| transp. | circular arc aerofoil | aereiteog i gcruth stua chiorclaigh |
| comp., MS | Circular Bending Process | Próiseas Claonta Ciorclach (A SmartArt graphic layout used to show a long or non-linear sequence or steps in a task, process, or workflow. Works best with Level 1 text only. Maximizes both horizontal and vertical display space for shapes) |
| transp., tech., law | circular crack | scoilt chiorclach |
| gen. | circular dispersion | spré ciorclach |
| econ., waste.man. | circular economy | geilleagar ciorclach |
| gen. | circular error of probability | ciorcal na comhdhóchúlachta |
| gen. | circular error of probability | earráid chiorclach dhóchúil |
| gen. | circular error of probability | ciorcal na dóchúlachta comhionainne |
| gen. | circular error of probability | earráid chiorclach dóchúlachta |
| hobby, transp., avia. | circular flat parachute | paraisiút ciorclach plánach |
| gen. | circular from the Minister | ciorclán ón Aire |
| environ. | circular mail A memorandum, letter or notice in either paper or electronic format distributed widely throughout an organization or to a general list of interested parties | ciorclán |
| immigr., empl. | circular migration | imirce chiorclach |
| econ., environ., tech. | circular scale polarimeter | polaraiméadar cuarscála |
| fin., polit. | circular section | gearradh ciorclach |
| market., commun. | cross-polar phase for circular polarisation | pas traspholach le haghaidh polarú ciorclach |
| market., commun. | orthogonal circular beacon | rabhchán ciorclach ortagánach |
| gen. | probable circular error | ciorcal na dóchúlachta comhionainne |
| gen. | probable circular error | earráid chiorclach dóchúlachta |
| gen. | probable circular error | earráid chiorclach dhóchúil |
| gen. | probable circular error | ciorcal na comhdhóchúlachta |