thạch

== Vietnamese == === Etymology === Sino-Vietnamese word from 石, clipping of thạch hoa thái (石花菜) (“Gelidium amansii”), a species of red algae used to make agar. Rau câu (“Gracilaria”), a term designated another genus of red algae and agar source, came to be used in the Southern dialects, while Central dialects use đông sương. === Pronunciation === (Hà Nội) IPA(key): [tʰajk̟̚˧˨ʔ] (Huế) IPA(key): [tʰat̚˨˩ʔ] (Saigon) IPA(key): [tʰat̚˨˩˨] Homophone: Thạch === Noun === thạch (Northern Vietnam) agar Synonyms: rau câu, đông sương, xu xoa, thạch xoa (by extension) isinglass (Northern Vietnam) jelly (dessert) Synonyms: rau câu, đông sương ==== Derived terms ==== === Noun === thạch (probably obsolete) a unit of volume chiefly for measuring grains, equal to 10 litres === Romanization === thạch Sino-Vietnamese reading of 石 ==== Derived terms ==== ==== See also ==== đá