actino-, actin-, actini-, -actinal, actis- +

(Greek: ray [as of light] or like a ray in form; radiance, radiation; a radiating or tentacled structure)

actinomorphous
The radial symmetry in which floral parts that are divided into equal halves.
actinomorphy
Radial symmetry in flowers in which floral parts can be divided into equal halves in more than one longitudinal plane.
actinomyces
Any of several saprophytic, filamentous, anaerobic bacteria of the genus Actinomyces, certain species of which are pathogenic for humans and animals.

Actinomyces are known for causing disease in humans, and for the important role they play in soil ecology. They produce a number of enzymes that help degrade organic plant material, lignin and chitin. As such, their presence is important in the formation of compost.

actinomycete, ray fungus
A broad group of bacteria that grow slowly as branched filaments.
actinomycetous
A reference to having the appearance of a group of bacteria that grow slowly as branched or radiated filaments.
actinomycosis
1. An inflammatory bacterial disease of cattle and other animals, sometimes caught by humans, that resembles a fungus and causes swelling of the abdomen, chest, and especially the jaw.
2. A chronic disease of cattle, swine, and humans characterized by hard granulomatous masses usually in the mouth and jaw.

It is characterized by deep, lumpy abscesses that extrude a tin, granular pus through multiple sinuses.

This disease occurs worldwide but is seen most frequently in those who live in rural areas.

actinomycotic
Relating to actinomycosis or characterized by an inflammatory disease of cattle, hogs, and sometimes humans, caused by microorganisms of the genus Actinomyces and characterized by lumpy tumors of the mouth, neck, chest, and abdomen.
actinon
Actinium emanation, a short-lived isotope of radon.
actinoneuritis
1. Inflammation of a nerve or nerves (neuritis) resulting from exposure to radium or X-rays, or other radioactive substances.
2. A seldom used term for radioneuritis (neuritis or inflammation of a nerve accompanied by pain and sometimes loss of function from exposure to radiant energy).
actinophage, actinophagia, actinophagic
A virus that causes the lysis (decomposition, disintegration) of actinomycetes (bacteria).
actinopharynx
The gullet of a sea anemone or a solitary and often colorful sea animal with a squat cylindrical body topped by a ring of tentacles that attaches itself to rock or other nonliving material.
actinophone (s) (noun), actinophones (pl)
The production of sound with rays involving the property or force in the sun's rays by which chemical changes are produced, as in photography.
actinophonic (adjective), more actinophonic, most actinophonic
A reference to sounds that are produced by chemical action.
actinophore
A substance containing thorium, formerly used as a contrast agent in radiology.
actinophorous
Having, or bearing, straight projecting spines.