Skip to Main Content

We have a new app!

Take the Access library with you wherever you go—easy access to books, videos, images, podcasts, personalized features, and more.

Download the Access App here: iOS and Android


(dē-pol″ĭ-mĕr-ī-zā′shŏn) The breakdown or splitting of polymers into their basic building blocks or monomers. The polysaccharide glycogen, for example, can be depolymerized to yield multiple glucose monomers.


(dē-pō′nĕnt) One who testifies under oath about the facts at issue in litigation. The testimony is transcribed by a court reporter and becomes part of the legal record.


(dē-pop″yŭ-lā-shŏn) A large decline in the number of people living in an area, city, region, state, or nation.


(dē-pŏz′ĭt) [L. depositus, having put aside] 1. Sediment. 2. Matter collected in any part of an organism.

calcareous d. A deposit of calcified material, as in calculus on teeth.


(dĕp″ă-zĭsh′īn) 1. Pretrial discovery tool or technique in which the person being questioned (the deponent) is placed under oath and asked to testify about issues on the subject of litigation, which is then transcribed by a court reporter. 2. The sedimentation of particles previously suspended or circulating in solution.

diffusion d. The accumulation of aerosol particles on a surface due to their random bombardment by gas molecules.


(dē′pō, dĕp′ō) [Fr. dépot, fr. L. depositum, put down] A place of storage, esp. in the body, such as a fat depot or a drug depot. Drugs that remain in long-term storage in the body after injection include hormonal agents (such as progesterone, testosterone, insulin, and leuprolide) and antipsychotic agents (such as haloperidol and risperidone), among others.


(dĕp″ră-vā′shŭn) [L. depravare, completely destroyed] A pathological deterioration of function or secretion.


(dē″prē-skrīb′ing) [de- + prescribe] Discontinuing a previously recommended medication, either by abruptly stopping the drug or by gradually tapering it from its current dosage. SYN: drug withdrawal.


(dē-prĕs′ănt) [L. depressus, pressed down] An agent that decreases the level of a body function or nerve activity, e.g., a sedative.

cardiac d. An agent that decreases heart rate and contractility.

respiratory d. An agent that lessens frequency and depth of breathing.


(dĕ-prĕst′) 1. Below the normal level, as when fragments of bone are forced below their normal level and that of surrounding portions of bone. 2. Low in spirits; dejected. 3. Having a decreased level of function. SEE: depression.


(dĕ-presh′ŏn) [L. depressio, a pressing down] 1. A hollow or lowered region. 2. The lowering of a part, such as the mandible. 3. The decrease of a vital function such as respiration. 4. Any of several mood disorders ...

Pop-up div Successfully Displayed

This div only appears when the trigger link is hovered over. Otherwise it is hidden from view.