Dictionary.net

• A collection of small, glandular granule, situate in the adipose, areolar texture at the base of the anterior surface of the epiglottis, in a triangular space, bounded anteriorly by the thy­ro-hyoid membrane and thyroid cartilage. It pours out an unctuous and mucous fluid, which lubricates the epiglottis, keeps it supple and movable, and prevents the larynx from being irritated by the constant passage of the air, in the act of respiration.

1846 - Medical lexicon: a dictionary of medical science
By Robley Dunglison