| Subject | Portuguese | English |
| med. | ac anti-gp110 | anti-gp110 antibody |
| med. | ac anti-gp160 | anti-gp160 antibody |
| med. | ac anti-p24 | anti-p24 antibody |
| med. | ac anti-p18 | anti-p18 antibody |
| med. | ac anti-vpr | anti-vpr antibody |
| comp., MS | AC autónoma | stand-alone CA (A certification authority (CA) that is not integrated with Active Directory) |
| comp., MS | AC comprometida | CA compromise (A situation in which it is known or suspected that the CA's private key or other aspects of the CA validated in the certificate have been revealed) |
| comp., MS, Braz. | AC corporativa | enterprise CA (A computer service that issues digital certificates that can only be used inside a business or organization) |
| comp., MS | AC de raiz | root CA (The most trusted certification authority (CA), which is at the top of a certification hierarchy. The root CA has a self-signed certificate) |
| comp., MS | AC de raiz confiável | trusted root CA (A root certification authority that appears in the Trusted Root Certification Authorities console of the Windows operating systems and is trusted by the operating system) |
| comp., MS | AC emissora | issuing CA (In a public key infrastructure hierarchy, the certification authority that that issues certificates to users and computers) |
| comp., MS | AC empresarial | enterprise CA (A computer service that issues digital certificates that can only be used inside a business or organization) |
| comp., MS | AC intermediária | intermediate CA (A certification authority that has the ability to issue the intermediate certificates needed to certify the subject identified by the end certificate) |
| comp., MS, Braz. | AC raiz | root CA (The most trusted certification authority (CA), which is at the top of a certification hierarchy. The root CA has a self-signed certificate) |
| comp., MS, Braz. | AC raiz confiável | trusted root CA (A root certification authority that appears in the Trusted Root Certification Authorities console of the Windows operating systems and is trusted by the operating system) |
| comp., MS | AC subordinada | subordinate CA (In a public key infrastructure (PKI) hierarchy, any certification authority that is not the root CA) |
| comp., MS, Braz. | autoridade de certificação, AC | CA (An entity entrusted to issue certificates that assert that the recipient individual, computer, or organization requesting the certificate fulfills the conditions of an established policy) |
| comp. | conector AC IN | AC IN connector |
| met. | ponto AC | Ac-point |
| comp., MS, Braz. | registro via Web na AC | CA Web enrollment (A role service that enables certificate-related requests to a remote certification authority (CA) through a web interface) |
| life.sc. | solos de perfil AC | A/C soil |
| food.ind., chem. | vermelho allura AC | allura red AC |
| food.ind., chem. | vermelho allura AC | E129 |
| food.ind., chem. | vermelho allura AC | CI food red 17 |
| comp., MS, Braz. | Windows AC | Windows AC (A tool in the Windows ADK that uses assessments to create jobs that evaluate quality and view the results after a job runs. The Windows AC can also package a job and other necessary files, save the files in a folder that contains an executable file, move the job to another computer, and then run the job on the new computer) |