dec-

英 [dek] 美 [dek]

• [词头]十(进的), 十倍的

英英释义

名词 dec:

1. the last (12th) month of the year

2. (astronomy) the angular distance of a celestial body north or to the south of the celestial equator; expressed in degrees; used with right ascension to specify positions on the celestial sphere