Wiktionary
mother hive
n. (alternative form of mother-hive English)
Usage examples of "mother hive".
Two years later, the Mother Hive had been on a collision course with Deneb which had been thwarted when the Rowan, leading the female minds, had paralysed the dominant Hive `Many'.
Three years later the Mother Hive ship, a spherical leviathan, appears at Deneb heliopause.
They have to send as many as forty such ships in the hope that one will survive to penetrate the Mother Hive.