| preganglionic | Situated proximal to or preceding a ganglion; referring specifically to the preganglionic motor neurons of the autonomic nervous system (located in the spinal cord and brainstem) and the preganglionic, myelinated nerve fibres by which they are connected to the autonomic ganglia. (05 Mar 2000) |
|---|---|
| preganglionic fibres | A fibre whose cell body is located in an autonomic nucleus in the spinal cord or brain stem and whose axon terminates in an autonomic (motor) ganglion; found in nerves conveying sympathetic or parasympathetic fibres. (05 Mar 2000) |
| preganglionic motor neuron | See: motor neuron. (05 Mar 2000) |
| pregenital organization | In psychoanalysis, the organization or arrangement of the libido in the stages prior to that of genital primacy. (05 Mar 2000) |
| pregenital phase | In psychoanalysis, the collective psychosexual development phase's preceding the genital phase. (05 Mar 2000) |
| preglacial | <geology> Prior to the glacial or drift period. Source: Websters Dictionary (01 Mar 1998) |
| pregnadienediols | Doubly unsaturated pregnane derivatives with two hydroxy groups substituted anywhere on the rings or side chains. (12 Dec 1998) |
| pregnadienes | Pregnane derivatives containing two double bonds anywhere within the ring structures. (12 Dec 1998) |
| pregnadienetriols | Doubly unsaturated pregnane derivatives substituted with three hydroxy groups anywhere within the ring structure or side chains. (12 Dec 1998) |
| pregnancy | The condition of having a developing embryo or foetus in the body, after union of an ovum and spermatozoon. (12 Dec 1998) |
| pregnancy cells | Hypophysial chromophobe cell's that increase in number and accumulate eosinophil granules during pregnancy. (05 Mar 2000) |
| pregnancy complications | The co-occurrence of pregnancy and a disease. The disease may precede or follow conception and it may or may not have a deleterious effect on the pregnant woman or foetus. (12 Dec 1998) |
| pregnancy complications, cardiovascular | The co-occurrence of pregnancy and a cardiovascular disease. The disease may precede or follow conception and it may or may not have a deleterious effect on the pregnant woman or foetus. (12 Dec 1998) |
| pregnancy complications, haematologic | The co-occurrence of pregnancy and a blood disease. The haematologic disorder may be of the cells or coagulation elements of the blood but does not refer to deficiencies or excesses of various substances in the blood, such as hypercalcaemia or hypocalcaemia. It may precede or follow conception and it may or may not have a deleterious effect on the pregnant woman or foetus. (12 Dec 1998) |
| pregnancy complications, infectious | Infections occurring during the course of pregnancy, or pregnancy during the course of an infectious disease. (12 Dec 1998) |