1. Lengthwise.

2. Pertaining to longitude or length; running lengthwise.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• lonitudinal,
• longitudianl,
• logitudinal,
• longitudnal,
• longgitudinal,
• lingitudinal,
• longitudional,
• longitudial,
• longtitudinal,
• longditudinal,
• longtudinal,
• longitidinall,
• longitudal,
• longitudinaly,
• longituinal,
• lognitudinal,
• lonigtudinal,
• Longitundinaly,
• lognituedinal,
• logituedinal

• longitude,
• longstanding,
• longitudinally,
• latitudinal.

The adjective form of the word "longitudinal" is "longitudinal".

The plural form of the word "longitudinal" is "longitudinals".

The singular form of the word "longitudinal" is "longitudinal".