-ology, -logy, -ologist, -logist

(Greek: a suffix meaning: to talk, to speak; a branch of knowledge; any science or academic field that ends in -ology which is a variant of -logy; a person who speaks in a certain manner; someone who deals with certain topics or subjects)

The word -ology is a back-formation from the names of certain disciplines. The -logy element basically means "the study of ____". Such words are formed from Greek or Latin roots with the terminal -logy derived from the Greek suffix -λογια (-logia), speaking, from λεγειν (legein), "to speak".

The suffix -ology is considered to be misleading sometimes as when the "o" is actually part of the word stem that receives the -logy ending; such as, bio + logy.

Through the years -ology and -logy have come to mean, "study of" or "science of" and either of these suffixes often utilize the form of -ologist, "one who (whatever the preceding element refers to)".

The examples shown in this unit represent just a small fraction of the many words that exist in various dictionaries.

noologist
Someone who is versed or who specializes in noology.
noology
1. The study of intuition, reason, and comprehension.
2. The science of the intuitive truths of reason.
3. Science of the intellect, intellectual phenomena, or understanding.
4. The doctrine of the mind.
normal histology (s) (noun), normal histologies (pl)
The study of body tissues and cells using microscopic techniques: As an undergraduate science student, Karin enjoyed her classes in normal histology and decided to pursue a medical degree.

The evolution of electronic microscopes enabled scientists of normal histology to better understand and compare healthy tissues and diseased tissues.

noseconology
The study of hospital administration.
nosetiology
The study of what causes diseases.
nosologist
A specialist in the classification of diseases.
nosology
1. The science of the classification of diseases.
2. The study of diseases and, in particular, their classification, grouping, ordering, and relationship to one another; it includes the formulation of principles for differentiating one disease from another.
3. The classification of ill people into groups, whatever the criteria for the classification, and agreement as to the boundaries of the group.

Pointing to a page about human diseases or nosology. When diseases started to become plagues is explained at this nosology page.

nostologist
One who studies senility; a gerontologist.
nostology, nostologic
1. The study of the senile stages of an organism or race of organisms.
2. The study of senility, gerontology, and geriatrics.

Based on the idea that some aspects of "later life [senility] is somewhat like returning to early years".

nucleocosmochronology
A technique that attempts to estimate the age of astronomical objects by measuring the relative abundances of isotopes (any of two or more atoms of an element having the same number of protons, but a different number of neutrons in its nucleus).
numerologist (s) (noun), numerologists (pl)
A believer or someone who practices the art of predicting the future based on mathematical quantities that are related to a person's birthday: Gerald, the numerologist, told Maurice that his book would be a successful publication and financially rewarding for him.
numerology (s) (noun), numerologies (pl)
1. The study of digits, as the figures designating the year of a person's birth, to determine their supposed influence on his or her life, future, etc.: Shane's interest in numerology came about because he was influenced by his aunt who convinced him that she could predict his future.
2. The study of the occult meanings of numbers and their supposed influence on human life: Numerology is the study of the mystical or esoteric relationships between digital notations and the character or action of physical objects and living things.

The numerologies of divination were popular among early mathematicians; such as, Pythagoras, but they are no longer considered to be part of mathematics and so they are now regarded as a pseudoscience by most mathematicians.

The beliefs in numerology are similar to the historical development of astronomy which is separated from astrology; as well as, that of chemistry from alchemy.

The occult significance of numbers and their supposedly influence on human beings.
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numismatology
oceanologist
Anyone who specializes in the scientific study of oceans, the life that inhabits them, and their physical characteristics; including the depth and extent of ocean waters, their movement and chemical makeup, and the topography and composition of the ocean floors.
oceanology
1. The branch of oceanography that studies how oceans may be used for economic or technological purposes.
2. The explorations and scientific studies of the ocean and its phenomena.
Cross references of word families related directly, or indirectly, to: "talk, speak, speech; words, language; tongue, etc.": cit-; clam-; dic-; fa-; -farious; glosso-; glotto-; lalo-; linguo-; locu-; logo-; loqu-; mythico-; ora-; -phasia; -phemia; phon-; phras-; Quotes: Language,Part 1; Quotes: Language, Part 2; Quotes: Language, Part 3; serm-; tongue; voc-.