abiogenesis (s) (noun)
, abiogeneses (pl)
1. The (supposed) origin or evolution of living organisms from lifeless matter without
the action of living parents; spontaneous generation (introduced by Professor
Thomas H. Huxley when addressing the British Association at Liverpool, September,
1870): Our professor explained the theory of abiogenesis when we were learning about the evolution of species.
2. The now discredited theory that living organisms can be spontaneously generated
directly from nonliving matter: There are conflicts as to whether abiogenesis has any validity.
3. Spontaneous generation; the concept that life can simply arise spontaneously from nonliving matter by natural processes without the intervention of supernatural powers: There have been many throughout history who have strived to disprove the theory of abiogenesis.
Of or pertaining to that which does not result from the activities of living organisms: The former
abiogenetic theory that plant and animal life can spontaneously arise from nonliving organic matter in a relatively short period of time has been rejected by just about everyone.
abiogenetically (adverb) (not comparable)
Relating to a condition of not being involved in or produced by living organisms: On TV, the biologists argued about how impractical it would be if any abiogenetically spontaneous existence of life could possibly exist.
Pertaining to the coming into existence without springing from previous living beings: There are those who claim that abiogenous creatures were produced spontaneously without any previous living ancestors.
acrogen (s) (noun)
, acrogens (pl)
A plant that has a perennial stem with the growing point at the tip: Acrogens are flowerless florae, such as the mosses or the cryptogam ferns.
acrometagenesis (s) (noun) (no pl)
Undue, or abnormal, growth of the extremities resulting in deformity: In the fairy tale that Jenny was reading, there were strange and funny creatures, like people who were all affected with acrometagnesis with distorted hands and feet.
actinogenesis (s) (noun)
, actinogeneses (pl)
The production of radiation; radiogenesis: Actinogenesis is the formation of rays or of radiation, especially ionising radiation.
Originating from glandular tissue: Karen learned that something, like a tumor, can be adenogenous in that it can emerge or be formed in the tissues of a gland.
adermogenesis (s) (noun)
, adermogeneses (pl)
An imperfect development of the skin of a newborn baby.
adipogenesis (s) (noun)
, adipogeneses (pl)
The formation of fat or fatty tissue: The transformation of nonfat food substances into body fat is a process called adipogenesis
The production and accumulation of fat is another way to explain adipogenesis.
adipogenic, adipogenetic (adjective) (not comparable)
A reference to the production or formation of fat: caused by fat, lipogenic: Adipogenic activity applies either to fatty degeneration or fatty infiltration. Adipogenic processes also apply to the normal deposition of fat or to the conversion of carbohydrate or protein to fat.
Referring to a combination of obesity and the genitals: Adiposogenital issues concern the retarded development of the sex glands resulting from an impaired function of the pituitary gland and the hypothalamus.
adrenogenic, adrenogenous (adjective) (not comparable)
Regarding the adrenal gland or to the adrenal cortex: Jim found out that his ailment was of an adrenogenic nature and originated fron the adrenal.
A reference to the adredal glands and to the genitals: Adrenogenital
effects of adrenocortical hormones can result in bodily disorders.
The adrenogenital syndrome characterizes a group of ailments whereby an unusual production of steroid hormones by the adrenal cortex leads to a deviation of sexual characteristics, particularly those of virilization of females.
aerogenesis (s) (noun) (no pl)
Production of air or gas: Aerogenesis can be formed by microorganisms, for example.