Billion

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Billion

1. One thousand million in the short scale numbering system.

2. One million million in the long scale number system. This number is known, perhaps more commonly, as one trillion.
References in periodicals archive ?
2] connate or short-stalked with R3+4, 3) flagellum of the antenna uniquely specialized with long scales along posterior margin, except in the apical part, sometimes appressed or short rough scales on anterior margin, 4) labial palpus with third segment very slender, longer than second segment, and 5) male genitalia with variable shaped valva and elongated juxta.
Also, on long scales, accuracy is greatest towards the middle of the range.