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Use "rostra" in a sentence
"The chiripá, a scarf which resembled a diaper, was strung through his legs, and the buckle of his wide belt, called a rostra, was made from silver coins fastened to chains."
"Above the rostra was the Senate-house, said to have been first erected by Tullus Hostilius; and near the Comitium, or place of meeting for the patrician Curiæ. ["
"At the earliest embryonic stages the nasal openings are still situated at the rostra tip like those of land mammals; they are gradually shifted more and more towards the vertex of the head at the older stages."