Pronunciation: [vˈɛləsˌa͡ɪn] (IPA) 
The word "vellosine" is spelled as /vɛləsin/. The IPA phonetic transcription for this word indicates that the first syllable "vel" is pronounced as "vɛl" with a short "e" sound. The second syllable "lo" is pronounced as "ləʊ" with a long "o" sound. The final syllable "sine" is pronounced as "sin" with a short "i" sound. This word refers to a type of wool fabric that is soft and fluffy due to its loose weave.
Vellosine is a term primarily used in the field of botany, specifically in relation to the structure and characteristics of plant species. It refers to the presence or formation of small, fine hairs or tufts, known as vello, that cover the surface of various plant parts, including leaves, stems, and petals. These hairs are often soft to the touch and can provide a fuzzy or velvety texture to the plant's surface.
The vellosine trait is observed in a wide variety of plants, serving several essential functions. Firstly, these fine hairs can help reduce water loss by creating a protective barrier against excessive evaporation. By trapping moisture close to the surface, vellosine aids in maintaining the hydration levels of the plant, particularly in arid environments.
Secondly, vellosine can act as a defense mechanism, deterring herbivores and insects from feeding on the plant. The fine hairs may cause discomfort or irritation to potential predators, making the plant less appealing as a food source.
Furthermore, vellosine can also play a role in temperature regulation. The hairs can insulate the plant, reducing heat absorption and reflecting excessive sunlight, thereby preventing damage from high temperatures or intense sunlight.
In summary, vellosine refers to the presence of small, fine hairs covering the surface of a plant, providing protection against water loss, defense against herbivores, and temperature regulation.
Pareirine, an alkaloid in the bark, fruit, and leaves of Geissospermum vellozii, a plant of Brazil; it has antiperiodic properties.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
