quercitannoform
Word Rarity
Very rare
Frequency: Zipf frequency 0.00 in modern English
31
Scrabble Score
15
Letters
4
Syllables
12
Unique Chars
Meaning
noun
Tannoform derived from quercitannin or quercitannic, rather than gallotannic, acid.
Obsolete; Uncountable
Example Sentences
- "Quercitannoform, CH2(C1, H13O7)2 + H2O, from quercitannic acid and formaldehyde, is a reddish - yellow powder which blackens at 275°; it is insoluble in water, ammonia, and soda, and its solution in sulphuric acid, which[…]"
- "QUERCITANNOFORM is prepared in the same oak-bark, forming a yellowish-red powder, insoluble in water, alkalies and other organic solvents. In addition, Quecitannoform […]"