Old translated texts used this character for the imperial ounce; today 盎司 is used.
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唡 was a coined unit character (mouth radical 口 plus 两, 'tael', for the phonetic) used in early translations for the British ounce. It is obsolete in modern Chinese, replaced by 盎司 (ounce).
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Obsolete unit term — found only in old translated and technical texts, not used today.
两 ('tael', the traditional Chinese weight unit) gives both the sound liǎng and a weight-unit semantic hint, since the new character names a foreign weight unit.
No stroke data for 唡; the glyph shown is your device font, so component strokes can't be highlighted.
