| nonsense triplet | A trinucleotide (codon) in which a base change to a termination codon results in premature termination of the growing polypeptide chain and, consequently, incomplete protein molecules, a termination codon. (05 Mar 2000) |
|---|---|
| triplet | <microscopy> A combination of three simple lenses cemented together. Two positive lenses with a negative lens between them can produce a well-corrected system. (05 Aug 1998) |
| triplet state | A second excited state of a molecule (e.g., chlorophyll) produced by absorption of light to produce the singlet state, then loss of some energy (fluorescence) to arrive at the longer-lived triplet state The molecule may remain sufficiently long in the triplet state for a second activating light quantum to be effective in producing a "second triplet" state, obviously at still a higher level of excitation, hence reactivity. Alternatively, it may lose the triplet state energy directly and return to the ground state. (05 Mar 2000) |
| abdominal pregnancy | The implantation and development of the ovum in the peritoneal cavity, usually secondary to an early rupture of a tubal pregnancy; very rarely, primary implantation may occur in the peritoneal cavity. Synonym: abdominocyesis, intraperitoneal pregnancy. (05 Mar 2000) |
| aborted ectopic pregnancy | The rupture of an oviduct, the seat of ectopic pregnancy, or extrusion of the product of conception through the fimbriated end of the oviduct; aborted ectopic pregnancy, the pregnancy having originated in the fallopian tubes. Synonym: aborted ectopic pregnancy. (05 Mar 2000) |
| alcohol, pregnancy | The consumption of alcohol during pregnancy carries the danger of damaging the foetus. (12 Dec 1998) |
| ampullar pregnancy | Tubal pregnancy situated near the midportion of the oviduct. (05 Mar 2000) |
| bigeminal pregnancy | A pregnancy that may result from the fertilization of two separate ova or of a single ovum. See: twin. Synonym: bigeminal pregnancy. (05 Mar 2000) |
| macrocytic anaemia of pregnancy | An anaemia occurring in pregnancy, related to folate deficiency and characterised by a low level of haemoglobin and a reduced number of erythrocytes, which are larger than normal (macrocytes). (05 Mar 2000) |
| papular dermatitis of pregnancy | Intensely pruritic papular eruption of torso and extremities occurring throughout pregnancy, with no systemic toxicity; may be similar to pruritic urticarial papules and plaques of pregnancy. (05 Mar 2000) |
| mask of pregnancy | <medicine> A dark discolouration of the skin, usually local; as, Addison's melasma, or Addison's disease. Melasmic. Origin: NL, fr. Gr. Black spot. Source: Websters Dictionary (01 Mar 1998) |
| vomiting of pregnancy | Vomiting occurring in the early months of pregnancy. (05 Mar 2000) |
| cervical pregnancy | The implantation and development of the impregnated ovum in the cervical canal. (05 Mar 2000) |
| mesometric pregnancy | Ectopic pregnancy beginning as a tubal pregnancy, the amnotic sac being eventually formed by the mesometrium. (05 Mar 2000) |
| persistent ectopic pregnancy | An ectopic pregnancy which has persistent viable tissue, secreting hCG after conservative surgery. (05 Mar 2000) |