| SYN | extinct reptiles of the Permian to Jurassic considered ancestral to mammals |
|---|---|
| SYN | the side by side pairing of homologous maternal and paternal chromosomes at the start of meiosis |
| SYN | (neuroscience) of or involving synapses |
| SYN | bog lemmings |
| SYN | of wet alpine and subalpine meadows of Canada and Alaska |
| SYN | of low bogs and meadows of northeastern and central United States and southern Canada |
| SYN | make synchronous and adjust in time or manner |
| SYN | fruit consisting of many individual small fruits or drupes derived from separate ovaries within a common receptacle: e.g. blackberry |
| SYN | (of ovaries of flowering plants) consisting of united carpels |
| SYN | (logic) a term that cannot be used meaningfully in isolation |
| SYN | (logic) of a term that cannot stand as the subject or (especially) the predicate of a proposition but must be used in conjunction with other terms |
| SYN | cyclotron that achieves relativistic velocities by modulating the frequency of the accelerating electric field |