Final answer:
The correct word for embroidery with uniformly spaced stitches in a pattern is needlepoint, which differs from tapestry as it involves stitching on the canvas rather than weaving images into the cloth itself.
Step-by-step explanation:
The 11-letter word for embroidery on canvas with uniform spacing of stitches in a pattern is needlepoint. Needlepoint is a form of counted thread embroidery in which yarn is stitched through a stiff open weave canvas. Unlike tapestry, which is a textile with imagery woven directly into the cloth, needlepoint is created by making consistent stitches across a canvas to fill in a design. An example of this distinction is the famous Bayeux 'Tapestry,' which is technically an embroidery since the images are stitched onto the fabric, not woven with it.