(construed with with, narrower sense) Having an identical meaning. / (construed with with, broader sense) Having a similar meaning. / (construed with with) Of, or being a synonym.

synchrotron radiation

(physics) The electromagnetic radiation emitted by the acceleration of relativistic charged particles in a synchrotron or under natural conditions approximating those of a synchrotron.

(physics) A form of cyclotron in which charged particles are accelerated by an electric field that is synchronized with a magnetic field that keeps them in a circular path.

Alternative spelling of false memory syndrome

The adverse environmental conditions in a building that pose a health risk to its occupants. / The symptoms experienced by people who work there.

(music, singing) The synchronization of prerecorded audio signals and movement of the lips such that there is no lack of simultaneity between them.

Alternative spelling of lip-sync

(computing) The establishment of equivalence between data collections (typically on different servers, and sometimes between trading partners), where each data element in one item maps to a data item in the other, and their data is equivalent.

Non-Oxford British English standard spelling of synchronize.