| SCA | self-care agency; severe congenital anomaly; sickle-cell anemia; single-camera autostereoscopic [ima... |
|---|---|
| SPC | salicylamide, phenacetin, and caffeine; seropositive carrier; single palmar crease; single photoelec... |
| SSB | short spike burst; sicca syndrome B; single-strand break; single-stranded binding [protein]; stereos... |
| SUA | serum uric acid; single umbilical artery; single unit activity |
| ECG | Electro-Cardio-Graphy(-Gram); 심전도 = EKG 1. Conducting System Structu... |
| Peters' ovum | An ovum with a presumptive fertilization age of about 13 days; for many years, it was one of very few young human embryos recovered in good condition and its study furnished many facts regarding early embryonic changes. (05 Mar 2000) |
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| migration of ovum | <gynaecology> The transperitoneal passage of an ovum from the ovarian follicle into the uterine tube. (05 Mar 2000) |
| cleavage stage, ovum | The embryo in its earliest stage, lasting from the first mitotic division of the fertilised ovum into two blastomeres to the formation of the morula, a compact mass of blastomeres. (12 Dec 1998) |
| sperm-ovum interactions | Interactive processes between the ovum and the spermatozoon. (12 Dec 1998) |
| isolecithal ovum | An ovum in which the yolk is evenly distributed throughout the cytoplasm. (05 Mar 2000) |
| ovum | 1. The female reproductive cell which, after fertilization, develops into a new member of the same species (von Baer, 1827), an egg. 2. The human ovum: a round cell about 0.1 mm. In diameter, produced in the ovary, where there is deposited around it a noncellular covering (oolemma, zona pellucida, zona radiata). It consists of protoplasm which contains some yolk, enclosed by a thin cell wall (vitelline membrane). There is a large nucleus (germinal vesicle), within which is a nucleolus (germinal spot). By extension, the word is also used to designate any early stage of the conceptus, when the embryo itself constitutes a tiny and insignificant part of the whole. (18 Nov 1997) |
| ovum implantation | Endometrial implantation of the blastocyst. (12 Dec 1998) |
| ovum implantation, delayed | Delay of embryonal development whereby the blastocyst remains in the uterine cavity for a variable period of time before attaching to the endometrium and continuing its development. (12 Dec 1998) |
| ovum transport | Transport of the ovum or zygote from the site of ovulation to the site of implantation. (12 Dec 1998) |
| telolecithal ovum | An ovum in which there is a large amount of yolk massed at the vegetative pole, as in the eggs of birds and reptiles. (05 Mar 2000) |
| fertilised ovum | An ovum impregnated by a spermatozoon. (05 Mar 2000) |
| polymorphism, single-stranded conformational | Variation occurring within a species in the conformation of denatured DNA fragments. These single-stranded DNA fragments are allowed to partially renature in a way that prevents the formation of double-stranded DNA. The fragments are run on polyacrylamide gels under various conditions to detect subtle changes in migration due to altered secondary structure. The resulting bands will align themselves if the fragments are the same, but will misalign if any point mutations are present. Sscps have been used in detecting mutations in various genes, such as oncogenes, tumour suppressor genes, and genes responsible for genetic diseases. (12 Dec 1998) |
| single | 1. One only, as distinguished from more than one; consisting of one alone; individual; separate; as, a single star. "No single man is born with a right of controlling the opinions of all the rest." (Pope) 2. Alone; having no companion. "Who single hast maintained, Against revolted multitudes, the cause Of truth." (Milton) 3. Hence, unmarried; as, a single man or woman. "Grows, lives, and dies in single blessedness." (Shak) "Single chose to live, and shunned to wed." (Dryden) 4. Not doubled, twisted together, or combined with others; as, a single thread; a single strand of a rope. 5. Performed by one person, or one on each side; as, a single combat. "These shifts refuted, answer thy appellant, . . . Who now defles thee thrice ti single fight." (Milton) 6. Uncompounded; pure; unmixed. "Simple ideas are opposed to complex, and single to compound." (I. Watts) 7. Not deceitful or artful; honest; sincere. "I speak it with a single heart." (Shak) 8. Simple; not wise; weak; silly. "He utters such single matter in so infantly a voice." (Beau & Fl) Single ale, beer, or drink, small ale, etc, as contrasted with double ale, etc, which is stronger. Single bill, a single rope running through a fixed block. Origin: L. Singulus, a dim. From the root in simplex simple; cf. OE. & OF. Sengle, fr. L. Singulus. See Simple, and cf. Singular. 1. To select, as an individual person or thing, from among a number; to choose out from others; to separate. "Dogs who hereby can single out their master in the dark." (Bacon) "His blood! she faintly screamed her mind Still singling one from all mankind." (More) 2. To sequester; to withdraw; to retire. "An agent singling itself from consorts." (Hooker) 3. To take alone, or one by one. "Men . . . Commendable when they are singled." (Hooker) Origin: Singled; Singling. Source: Websters Dictionary (01 Mar 1998) |
| single ascertainment | Method of ascertainment of locating affected individuals by hospital or clinic admission or another way in which probability of encountering the same family twice approaches zero; thus, the probability that a family will be ascertained is proportional to the number of affected members. (05 Mar 2000) |
| single-blind method | A method in which either the observer(s) or the subject(s) is kept ignorant of the group to which the subjects are assigned. (12 Dec 1998) |