Pronunciation: [vˈɛləm] (IPA) 
The word "velum" is spelt with a "v", "e", "l", "u", and "m". In IPA phonetic transcription, it is spelt /ˈvɛl.əm/. The first sound, the "v", is a voiced labiodental fricative. The next sound, "e", is a mid-front unrounded vowel. The "l" is a voiced alveolar lateral approximant. The "u" is a mid-back rounded vowel. Lastly, the "m" is a voiced bilabial nasal. Together, these sounds create the pronunciation of "velum" as /ˈvɛl.əm/.
Velum refers to a thin, membranous structure or layer found in various anatomical and biological contexts. It is typically characterized by its delicate and flexible nature.
In human anatomy, velum specifically refers to the soft palate, which is the posterior part of the roof of the mouth. This muscular structure is situated towards the back of the oral cavity, separating the mouth from the nasopharynx. The velum plays a crucial role in various functions, such as swallowing and speech production. During swallowing, it elevates to close off the nasopharynx, preventing food or liquid from entering the nasal cavity. In speech production, the velum elevates to block the nasal passage, allowing for the production of non-nasal speech sounds.
In biology, velum can also refer to a structure found in certain organisms. For instance, in some species of jellyfish, the velum is a thin, translucent layer that covers the bell-shaped body, playing a role in propulsion and locomotion. Similarly, in certain mollusks, the velum is a ciliated structure responsible for water movement and feeding. This definition of velum highlights its diverse uses and adaptations in different organisms.
Any structure resembling a veil or curtain.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
In bot., the cellular covering of the gills of an agaric in its early state.
Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874.
The word "velum" has Latin origins. It comes from the Latin noun "velum", which means a sail or a covering. The word "velum" was also used to refer to a curtain or a veil. The Latin term was later adopted into other languages, including English, with similar meanings.
