controlled (redirected from controlled release glass bolus)

controlled

subjected to control.

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controlled breeding

manipulation of mating and conception so as take advantage of seasonal demands for products, most favorable time for fertility or survival of offspring or for the purpose of controlling the size of the population. Includes managemental deferral of breeding, permanent surgical interference with male or female tracts and temporary hormonal suppression of reproductive activity.

controlled environment

buildings in which all food and drinking water are supplied and ambient temperature, humidity, air movement and light provision are controlled.

controlled experiment

one in which the experimental group which is to be subjected to a treatment or change in management is matched with a group which is very similar in every way except with respect to the variable that is to be manipulated.

controlled release glass bolus

see soluble glass.

controlled vocabulary

a database in which the names of diagnoses or medicines, etc. are limited to avoid a continual expansion of the titles, making comparisons between groups difficult.