No, basalt is not a sedimentary rock; it is an igneous rock.
Basalt forms from the rapid cooling of molten lava at or near the Earth’s surface. This process results in a fine-grained texture, as the minerals do not have much time to grow. In contrast, sedimentary rocks are formed from the accumulation and compaction of mineral and organic particles, or from chemical precipitation. These rocks often have a layered appearance and may contain fossils.
In summary, while both basalt and sedimentary rocks are part of the rock cycle, they originate from different processes and environments.