What does "ambulacrum" mean?

A row of pores in an echinoderm, for the protrusion of appendages such as tube feet.

What is a synonym for "ambulacrum"?

Common synonyms include: canal, channel, groove.

noun

noun ·Rare ·Advanced level

Noun

1
A row of pores in an echinoderm, for the protrusion of appendages such as tube feet.
2
one of the five areas on the undersurface of an echinoderm on which the tube feet are located wordnet
3
A walk or promenade planted with trees, often near a house.

From Latin ambulacrum, from ambulō (“walk; travel”).