Noun
a quantity expressed in two different units
Source: WordNetone hour and ten minutes Source: Internet
During 1947 the ITU adopted the compound number words (Nadazero Unaone, etc.), later adopted by the IMO during 1965. Source: Internet
List of basic calculations In languages Grammar * In all Germanic languages (such as English and German), 13 is the first compound number (in German dreizehn); the numbers 11 and 12 have their own names (in German elf and zwölf). Source: Internet
Spelling In Germany, according to an old tradition, 13 (dreizehn) as the first compound number was the first number written in digits; the numbers 0 (null) through 12 (zwölf) were spelt out. Source: Internet