(rare, biology, of a coral) Having an aulos (annular wall) between one's axial and periaxial regions.

plural of aulacogen

(geology) A tectonic trough on a craton that is formed as the failed arm of a triple-rift junction.

plural of aulos

(idiomatic) Days gone by; former times.

(obsolete) An ell (unit of measure).

plural of auln

Of or relating to a musical pipe or piper.

superlative form of auld: most auld

plural of aulete