actino-, actin-, actini-, -actinal, actis- +
(Greek: ray [as of light] or like a ray in form; radiance, radiation; a radiating or tentacled structure)
The study of the effects of radiation on living organisms; radiation biology: Actinobiology, the science concerning the action of ionising radiation on living creatures, is especially concerned with the effects of this on living creatures.
The mother cell from which a spicule (small needle-like structure or part) is developed: An actinoblast forms each ray of a sponge's radiate spicule, called a "scleroblast".
The sponges are members of the phylum Porifera.
actinocarpic (adjective), more actinocarpic, most actinocarpic
A reference to plants with flowers radially arranged: Actinocarpic vegetation or plants have the placentas radiate from the center of the axis of the fruit.
actinocarpous (adjective), more actinocarpous, most actinocarpous
Plants with flowers and fruit radially arranged: There are many kinds of actinocarpous plants and among them are the Pelargonium and the Mimosa pudica.
actinochemical (adjective) (not comparable)
A reference to the various effects produced by visible radiation: Actinochemical force of the sun's rays are different from light and heat.
One component of an actinochemical effect of a sunbeam is its ability to cause a chemical reaction.
The branch of chemistry that is concerned with the various effects produced by visible radiation; photochemistry: Actinochemistry deals with chemical reactions produced by light or other radiation.
A highly poisonous substance derived from the tentacles of the sea anemone: Actinocongestin can produce extensive dilatation of the splanchnic (internal organs collectively) vessels and hemorrhages when injected into laboratory animals.
Radio or radiation dermatitis (skin inflammation): Acrinocurtitis is a photosensitive dermopathy that appears in all races and mainly with older men.
An inflammation of the skin: Actinodermatitis is an ailment of the epidermis resuling from too much exposure to sunlight or because of an adverse reaction to a radiation-skin therapy.
Actinodermatitis is also caused by exposure to some form of radiation, such as ultraviolet light or X-rays.
actinodrome (adjective) (not comparable)
A reference to a leaf which is palmately veined: Grace saw many photos of actinodrome foliage of plants in her botany book and thought such a plant would look quite nice in her living room at home.
An actinodrome form radiates like a shape similar to that of a hand with the fingers extended.
actinodromous (adjective) (not comparable)
Veined like a hand with the fingers extended: Little Jane drew a picture of a plant with actinodromous leaves which was quite similar to all of little Jane's fingers spread apart.
A substance that produces radiation: The radiogenic substance actinogen is one of the radioactive chemical elements.
The production of radiation; radiogenesis: Actinogenesis is the formation of rays or of radiation, especially ionising radiation.
actinogenic (adjective). more actinogenic, most actinogenic
Referring to the production of radiation: Actinogenic formation of rays or radiation is especially exemplified by ionising radiation.
The science of radiation: Tom's father worked in the area of actinogenics which had to do with different kinds of rays, like ionising radiation and electromagnetic waves.
