Category: A

A lytic substance obtained from Actinomyces; it destroys some gram-positive and gram-negative organisms.  

Any bacterium of the order Actinomycetales.  

An order of bacteria that includes the families Mycobacteriaceae, Actinomycetaceae, Actinoplanaceae, Dermatophilaceae, Micromonosporaceae, Nocardiaceae, and Streptomycetaceae.  

A species from which the antibiotic actinomycin is obtained.  

The property of radiant energy that produces chemical changes, as in photography or heliotherapy.  

To radiant energy, such as x-rays, ultraviolet light, and sunlight, especially the photochemical effects. Actinic, pertaining to alterations induced by ultraviolet rays from sunlight, encompasses conditions such as actinic dermatitis (inflammation of the skin) and actinic keratosis (roughness and thickening of the skin). These conditions arise as a consequence of excessive exposure to solar radiation.…

A toxic compound used in making plastics.  

A salt or ester of acrylic acid.  

Trophoneurosis of the extremities with trophic, neuritic, and vascular changes. It is usually caused by prolonged immersion in water.  

The release of enzymes from acrosome on the head of the sperm, a complex process that helps sperm to penetrate the zona pellucida of the egg and thus to begin fertilization.