| secondary megaureter | Hydroureter secondary to vesicoureteral reflux or distal obstruction. (05 Mar 2000) |
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| secondary mesoderm | Mesoderm derived from the primitive streak and lying between the ectoderm and endoderm. Synonym: secondary mesoderm. (05 Mar 2000) |
| secondary metabolism | Pathways producing specialised metabolic products that are not found inevery cell. (09 Oct 1997) |
| secondary metabolite | <biochemistry> Chemicals that are usually unique to one organism or class of organisms, and are not essential to cell survival. They perform specialised functions, for example, degrading food sources or fighting off other organisms. Many of the chemicals that plants or microorganisms produce that are of biochemical interest are secondary metabolites, including antibiotics. (14 Nov 1997) |
| secondary methemoglobinaemia | Methemoglobinaemia caused by various chemical agents, such as nitrites. Synonym: enterogenous methemoglobinaemia, secondary methemoglobinaemia. (05 Mar 2000) |
| secondary myeloid metaplasia | Myeloid metaplasia occurring in individuals with another disease. Synonym: symptomatic myeloid metaplasia. (05 Mar 2000) |
| secondary narcissism | In psychoanalysis, the psychic energy once attached to external objects, but now withdrawn from those objects and reinvested in the ego. (05 Mar 2000) |
| secondary nodule | A lymphatic nodule having a germinal centre. (05 Mar 2000) |
| secondary nondisjunction | Nondisjunction occurring in an aneuploid cell that was the result of a primary nondisjunction. (05 Mar 2000) |
| secondary oocyte | <gynaecology> An oocyte which arises from the primary oocyte (which was diploid) after it completes the first meiotic division after the body has become sexually mature. The secondary oocyte eventually divides into the mature egg or ovum (which is haploid) and a polar body (which degenerates), thus ending the second meiotic division. (13 Nov 1997) |
| secondary palate | The posterior portion of the embryonic palate, which forms from the palatal processes of the embryonic maxilla and develops into the hard palate. (05 Mar 2000) |
| secondary pellagra | Pellagra resulting from any morbid condition that impairs nutrition by increasing the requirement or reducing the available supply of vitamins. (05 Mar 2000) |
| secondary point of ossification | This is the centre of bone formation appearing later than the punctum ossificationis primarium, usually in epiphysis. Synonym: punctum ossificationis secundarium, secondary point of ossification. (05 Mar 2000) |
| secondary process | In psychoanalysis, the mental process directly related to the learned and acquired functions of the ego and characteristic of conscious and preconscious mental activities; marked by logical thinking and by the tendency to delay gratification by regulation of the discharge of instinctual demands. Compare: primary process. (05 Mar 2000) |
| secondary product | <plant biology> End product of plant cell metabolism, which accumulates in or is secreted from, the cell. Includes anthocyanins, alkaloids, etc. Some are of major economic importance, for example as drugs. In contrast to a primary product that is involved in the vital metabolism of the plant. (18 Nov 1997) |
| Secale |
Rye (Secale cereale) is a grass grown extensively as a grain and forage crop. It is a member of the wheat tribe and is closely related to barley and wheat, although it is the singular species in the genus Secale. Rye grain is used to make flour, feed, some whiskeys and most vodkas. Rye, alone or overseeded, is planted as a livestock forage or harvested for hay. ...
출처: en.wikipedia.org/wiki/Secale
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| second messenger |
In biology, second messengers are low-weight diffusible molecules that are used in signal transduction to relay a signal within a cell. They are synthesized or released by specific enzymatic reactions, usually as a result of an external signal that was received by a transmembrane receptor and pre-processed by other membrane-associated proteins. ...
출처: en.wikipedia.org/wiki/Second_messenger
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| secondary structure |
Secondary structure generally refers to how individual molecules in a biopolymer are connected to each other, e.g. whether or not individual nucleotides in an RNA molecule are connected. It does not, however, refer to their actual position in three-dimensional space; the actual positions are considered to be tertiary structure. ...
출처: en.wikipedia.org/wiki/Secondary_structure
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| secretory duct |
a smaller duct that is tributary to an excretory duct of a gland and that also has a secretory function.
출처: www.merckmedicus.com/pp/us/hcp/thcp_dorlands_conte...
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| secondary culture |
one derived from a primary culture.
출처: www.merckmedicus.com/pp/us/hcp/thcp_dorlands_conte...
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| SEC | a war between the Allies (Australia Belgium Bolivia Brazil Canada China Colombia Costa-Rico Cuba Czechoslovakia Dominican-Republic El-Salvador Ethiopia Greece Guatemala Haiti Honduras India Iran Iraq Luxembourg Mexico Netherlands New-Zealand Nicaragua Norway Panama Philippines Poland South-Africa United-Kingdom US USSR Yugoslavia) and the Axis (Albania Bulgaria Finland Germany Hungary Italy Japan Rumania Slovakia Thailand) from 1939 to 1945 |
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| SEC | next to the best |
| SEC | in second place |
| SEC | of inferior status or quality |
| SEC | burn causing blisters on the skin and superficial destruction of the dermis |
| SEC | a shop that sells second-hand goods at reduced prices |
| SEC | someone who relieves a commander |
| SEC | a finish in second place (as in a race) |
| SEC | moderate to inferior in quality |
| SEC | a person of second-rate ability or value |
| SEC | foreseeing the future |
| SEC | being a replacement or substitute for a regular member of a team |