gen. Measuring a great distance from end to end; extensive in length; (also) having the specified length; long. Frequently in side and wide, wide and…

Extended lengthwise, oblong. Obsolete.

The direction of the length of something. Only used in adverbial phrase (the lengthway of…), and attributive quasi-adj.= lengthwise, adj.

Extending or proceeding in the direction of the length of an object; running lengthwise.

That extends lengthways.

Extending lengthwise; relating to or expressing linear extension, or magnitude of one dimension. Cf. protensively, adv. 1. Obsolete.

Following the direction of the length; longitudinal.