oitavaとは 意味・読み方・使い方

語源

From Portuguese oitava, from Old Galician-Portuguese oitavo, from Latin octāvus (“eighth”), q.v., in reference to it making up one-eighth of the alqueire (Portuguese bushel) or onça (Portuguese ounce). Doublet of octave, octavo, and ochava.

名詞

oitava (複数形 oitavas)

1. (historical) A traditional Portuguese unit of dry measure, equivalent to 1.6–2.4 liters in different 19th-century contexts.
2. (historical) A traditional Portuguese unit of mass, usually equivalent to 3.6 grams.
3. (historical) A traditional Brazilian unit of weight, equivalent to 17.44 carats, typically used for gold and precious stones.

同意語

• eighth (in Portuguese contexts)

等位語

• (unit of dry volume): celamim (¹⁄₄ oitava), maquia (¹⁄₂ oitava), quarta (2 oitavas), alqueire (8 oitavas)
• (unit of mass): grao (¹⁄₇₂ oitava), vintem (¹⁄₃₂ oitava), quilate (¹⁄₁₈ oitava), escropulo (¹⁄₃ oitava), onça (8 oitavas), quarta (24 oitavas), marco (48 oitavas), libra (usually 72 oitavas), arratel (128 oitavas)