longitudinal

Từ điển WordNet v3.1 - WordNet Dictionary

adjective

1. of or relating to lines of longitude
- longitudinal reckoning by the navigator
• Pertains to noun:
longitude
• Derivationally related forms:
longitude
2. running lengthwise
- a thin longitudinal strip
- longitudinal measurements of the hull
• Similar to:
lengthwise, lengthways
3. over an extended time
- a longitudinal study of twins
• Similar to:
long