velum

After a little while try to move the velum, closing and opening the nose passage, without uttering a sound and without breathing.

Still watching your mouth, inhale through the nose and exhale through the mouth; see how the velum moves as you do this.

Also called velar (from velum, for which see § 8) and more usually, but less accurately, guttural.

Bok also signifies acupictile, vel acupictum (velum, auloeum).

Foot divided into two, posterior half bearing the operculum; a wide epipodial velum; shell turbinated.