| Subject | English | Catalan |
| cinema | cinema complex | multicinema |
| math. | complex abnormal curve | corba anormal complexa |
| math. | complex demodulation | demodulació complexa |
| math. | complex experiment | experiència complexa |
| environ. | complex formation Formation of a complex compound. Also known as complexing or complexation | formació complexa |
| math. | complex Gaussian distribution | distribució gaussiana complexa |
| math. | complex Gaussian distribution | distribució de Gauss complexa |
| math. | complex table | taula complexa |
| math. | complex unit | unitat complexa |
| math. | complex Wishart distribution | distribució de Wishart complexa |
| environ. | complexing agent A substance capable of forming a complex compound with another material in solution | agent de complexió |