Pronunciation: [ˈalantˌə͡ʊɪk] (IPA) 
The word "allantoic" is spelled with a double "l" because it is derived from the word "allantois", which has a Latin origin. In IPA phonetic transcription, it is pronounced /əˈlæntɔɪk/. The stress is on the second syllable, and the "a" sound is pronounced like the "a" in "bat". The "o" sound is pronounced like the "o" in "pot". The "i" sound is pronounced like the "i" in "bit". The "c" at the end is pronounced like a "k" sound.
Allantoic is an adjective used to describe something that pertains to, is related to, or is characteristic of the allantois. The allantois is a membranous sac that forms during embryonic development of certain organisms, primarily mammals and reptiles. It serves various functions depending on the organism, such as waste storage and exchange of gases and nutrients.
In the context of embryology, allantoic refers specifically to the allantois and its associated structures, such as blood vessels and epithelial linings. It is commonly used to describe the allantois' role in supporting the developing embryo, as it aids in the transport of essential substances, including gases and waste products.
In veterinary medicine, the term allantoic may refer to fluids or materials that are derived from or associated with the allantois. For example, an allantoic cyst is a fluid-filled sac that develops within or in close proximity to the allantois. Allantoic fluid, on the other hand, refers to the liquid contained within the allantois.
Allantoic is a specialized term primarily found in scientific literature related to embryology and veterinary medicine. Its usage is limited to these respective fields due to its association with the specific structures and processes involved in embryonic development.
Relating to the allantois.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
Name of an acid found in the liquor of the allantois-a membrane enveloping the foetus.
Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874.
The word "allantoic" comes from the Latin word "allantoides", which in turn derives from the Greek words "allantoeidēs", meaning "sausage-shaped" or "sausage-like". The Greek term is a combination of "allant-, allas", meaning "sausage", and "-eidēs", which is a suffix indicating resemblance or similarity. In embryology, "allantoic" refers to the allantois, a membranous sac found in the embryos of reptiles, birds, and mammals that serves various functions.
