| Subject | English | Spanish |
| gen. | according to their political affinities | según las afinidades políticas |
| chem. | affinity chromatography | cromatografía de afinidad |
| fin. | affinity fraud | fraude por afinidad |
| comp., MS | affinity group | grupo de afinidad (A geographical grouping of a customer's hosted service deployments and storage accounts within Windows Azure. An affinity group can improve service performance by locating computer workloads in the same datacenter or near the target user audience) |
| comp., MS | affinity mask | máscara de afinidad (A value that contains bits for each processor on the system, defining which processors a process or thread can use) |
| med. | calcium affinity | afinidad por el calcio |
| chem. | chemical affinity | afinidad química |
| med. | chromatic affinity | afinidad |
| med. | chromosomal affinity | afinidad de los cromosomas |
| h.rghts.act. | distinction on the grounds of political affinity | distinciones basadas en la afinidad política |
| textile | dye affinity | afinidad para los colorantes |
| chem. | dye affinity | afinidad por el colorante |
| earth.sc., el. | electron affinity | afinidad electrónica |
| earth.sc., chem. | electron affinity | electroafinidad |
| antenn. | electron affinity | trabajo de salida |
| antenn. | electron affinity | trabajo de extracción |
| comp., MS | extended affinity | afinidad extendida (A type of client affinity that is preserved when configuring a change to a Network Load Balancing cluster. It also allows clients to keep affinity to a cluster host even if there are no existing connections from the client to the host) |
| el. | fourfold-coordination specific electron affinity | afinidad electrónica específica de coordinación cuádruple |
| comp., MS | hard affinity | afinidad forzada (A mechanism by which a thread can only run on a fixed set of one or more processors) |
| chem. | immuno-affinity chromatography | cromatografía de inmunoafinidad |
| med. | iodine affinity | afinidad por yodo |
| polit. | political affinity | afinidad política |
| proced.law. | relationship by affinity | parentesco por afinidad |
| proced.law. | relationship by affinity | afinidad |
| proced.law. | relative by affinity | afín |
| chem. | residual affinity | afinidad remanente |
| law | rights and duties arising out of a family relationship, parentage, marriage or affinity | derechos y deberes derivados de relaciones de familia, de parentesco, de matrimonio o de afinidad |
| earth.sc., el. | specific electron affinity | afinidad electrónica específica |
| genet. | terminal affinity | afinidad terminal |
| med. | with an affinity for fat | lipófilo |
| gen. | with an affinity for fat | soluble en grasa capaz de disolver las grasas que tiene predisposición a la obesidad |
| transp., avia. | Working Group on Affinity Charters | Grupo de trabajo sobre vuelos fletados de afinidad |