in·ter·cept·er (ĭn'tər-sěp'tər) n. Variant of interceptor.
in·ter·cep·tor also in·ter·cept·er (ĭn'tər-sěp'tər) n. One that intercepts, specifically a fast-climbing, highly maneuverable fighter plane designed to intercept enemy aircraft or a guided missile designed to intercept enemy missiles and spacecraft.