> as lemmas
hemihydrate
Categories »
hemihydrate n. 
/ˌhɛmɪˈhʌɪdrᵻt/, /ˌhɛməˈhaɪdrət/ Chemistry see 3. above.
Brit. /ˌhɛmɪˈhʌɪdreɪt/
, /ˌhɛmɪˈhʌɪdreɪt//ˌhɛmɪˈhʌɪdrᵻt/U.S. /ˌhɛməˈhaɪˌdreɪt/
, /ˌhɛməˈhaɪˌdreɪt//ˌhɛməˈhaɪdrət/hemi-hydrate
hemi-hydrate n. /ˌhɛmɪˈhʌɪdrᵻt/, /ˌhɛməˈhaɪdrət/
Brit. /ˌhɛmɪˈhʌɪdreɪt/
, /ˌhɛmɪˈhʌɪdreɪt//ˌhɛmɪˈhʌɪdrᵻt/U.S. /ˌhɛməˈhaɪˌdreɪt/
, /ˌhɛməˈhaɪˌdreɪt//ˌhɛməˈhaɪdrət/ΘΚΠ
society > occupation and work > materials > derived or manufactured material > plaster > [noun] > plaster of Paris
plastera1387
plaster of Parisa1425
yesoa1533
gesso1596
gypsum1646
Paris plaster1855
stucco1897
hemi-hydrate1909
1909 Webster's New Internat. Dict. Eng. Lang. Hemihydrate.
1946 Nature 6 July 13/2 Calcium sulphate exists in three states of hydration, anhydrite, gypsum, and the lower hydrate, generally known as hemihydrate or plaster of Paris.
1965 New Scientist 18 Mar. 709/2 Gypsum is calcined to form the hemi-hydrate which sets after wetting to re-form gypsum.
<
as lemmas