Search results
Results from the WOW.Com Content Network
Meaning Origin language and etymology Example(s) -iasis: condition, formation, or presence of Latin -iasis, pathological condition or process; from Greek ἴασις (íasis), cure, repair, mend mydriasis: iatr(o)-of or pertaining to medicine or a physician (uncommon as a prefix but common as a suffix; see -iatry)
An alpha privative or, rarely, [1] privative a (from Latin alpha prīvātīvum, from Ancient Greek α στερητικόν) is the prefix a-or an-(before vowels) that is used in Indo-European languages such as Sanskrit and Greek and in words borrowed therefrom to express negation or absence, for example the English words of Greek origin atypical, anesthetic, and analgesic.
a-, called alpha privative, from Ancient Greek ἀ-, ἀν-, from Proto-Hellenic *ə-; e.g. apathetic, abiogenesis. These all stem from a PIE syllabic nasal privative *n̥-, the zero ablaut grade of the negation *ne, i.e. "n" used as a vowel, as in some English pronunciations of "button". This is the source of the 'n' in 'an-' privative ...
Anisogamy (the opposite of isogamy) comes from the ancient Greek negative prefix a(n)-(alpha privative), the Greek adjective isos (meaning equal) and the Greek verb gameo (meaning to have sex/to reproduce), eventually meaning "non-equal reproduction" obviously referring to the enormous differences between male and female gametes in size and abilities. [10]
The term "alpha taxonomy" is primarily used to refer to the discipline of finding, describing, and naming taxa, particularly species. [20] In earlier literature, the term had a different meaning, referring to morphological taxonomy, and the products of research through the end of the 19th century.
Fetuses have a non-alpha chain called gamma and after birth it is then called beta. The beta chain will pair with the alpha chain. It is the combining of two alpha and non-alpha chains which create a hemoglobin molecule. Two alpha and two gamma chains form fetal hemoglobin or hemoglobin F (HbF). After the first five to six months after birth ...
The etymology of "acoel" is from the Ancient Greek words ἀ (a), the alpha privative, expressing negation or absence, and κοιλία (koilía), meaning "cavity". [5] [6] This refers to the fact that acoels have a structure lacking a fluid-filled body cavity.
In molecular biology, protein fold classes are broad categories of protein tertiary structure topology. They describe groups of proteins that share similar amino acid and secondary structure proportions. Each class contains multiple, independent protein superfamilies (i.e. are not necessarily evolutionarily related to one another). [1] [2] [3]