Penetrancy is often used as an alternative spelling for the word "penetrance," which refers to the likelihood or degree to which a specific gene or genetic trait is expressed in an individual. The IPA phonetic transcription for this word is /ˈpɛnɪtrənsi/ which breaks down the pronunciation as "pen-i-tran-see". Some researchers prefer to use penetrancy over penetrance when discussing genetic concepts, although both words have the same meaning in the field of genetics.
Penetrancy refers to the quality or characteristic of being able to penetrate or pass through something. It is derived from the verb "penetrate," which means to pierce, enter, or make a way through. Penetrancy primarily describes the ability of an object, substance, or force to deeply enter or permeate another material or space.
In a physical sense, penetrancy is often used to describe the degree to which an object can pass through or break through another solid or dense material. For example, a sharp knife has a high penetrancy because it can easily cut through various types of food, fabric, or other materials. In the field of engineering or construction, penetrancy may refer to the effectiveness of a sealant or coating in preventing the penetration of water, air, or other substances through a surface or structure.
Beyond the physical realm, penetrancy can also have metaphorical or abstract meanings. In this context, it relates to ideas, concepts, or emotions that deeply impact or reach into someone's mind, emotions, or understanding. For instance, a thought-provoking movie may be described as having a high penetrancy because it deeply affects the viewers, making them think about the depicted themes or emotions.
Overall, penetrancy encompasses the idea of the extent to which something can enter, permeate, or have an effect on a material, system, or individual, whether it is in the physical or abstract domain.
The power of entering or piercing.
Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874.