1. delta
2. Delta (letter)Delta is the fourth letter of the Greek alphabet. In the system of Greek numerals it has a value of 4. It was derived from the Phoenician letter Dalet . Letters that come from delta include Latin D and Cyrillic Д. A river delta (originally, the Nile River delta) is so named because its shape approximates the upper-case letter delta (the shape is a triangle).
Read “Delta (letter)” on English Wikipedia
Read “Δ” on Japanese Wikipedia
Read “Delta (letter)” on DBpedia
Read “Delta (letter)” on English Wikipedia
Read “Δ” on Japanese Wikipedia
Read “Delta (letter)” on DBpedia
δ 【デルタ】
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