"Stilettoes" Natural Recordings by Native Speakers
A type of high-heeled shoe, typically for women, having a long, thin, pointed or tapered toe and a thin, slender heel.
Stilbene is a type of organic compound that belongs to a class of aromatic compounds known as diphenylalkenes. It is a stereoisomeric compound with two enantiomers and a planar, rigid structure. In its basic form, it is a colorless, somewhat fluorescent oil.
Stilbenes are a class of organic compounds consisting of 1,2-diphenylethene (or ethane-1,2-diylidene) structure, which consists of two benzene rings linked by a three-carbon chain. Stilbenes typically have conjugated double bonds and often exhibit electronic and optical properties valuable for various applications.<br><br>Examples of stilbene compounds include:<br><br>1. Stilbene itself (C6H5CHCHC6H5)<br>2. Resveratrol (3,5,4'-trihydroxystilbene), a compound found in red wine, is said to have potential health benefits.<br>3. Prenyloxystilbene, a stilbene analog used as a colorant in certain food products.<br><br>Stilbenes can be categorized into different types based on their molecular structure, such as:<br><br>1. cis-stilbene and trans-stilbene (with the two benzene rings in the same or opposite positions, respectively)<br>2. angular stilbene (with the two benzene rings connected by a homocyclic joint<br>3. spirostilbene<br>4. other bridged stilbenes<br><br>Stilbenes find application in diverse fields, including:<br><br>1. Chemical synthesis<br>2. Organic chemistry research<br>3. Polymer science<br>4. Materials science<br>5. Photophysics and photochemistry<br>6. Pharmaceutical research<br><br>Their pharmacological and biological effects attract considerable research and attention, influencing various fields like nutraceuticals, ceramics, colorants, and polymer science. Stilbenes serve as relies for addressing numerous industrial, clinical, and environmental challenges and opportunities.
Stilbesterol is a synthetic estrogen with a double bond between the 3 and 4 positions. It is a compound that has been used in research and has been found to have weak estrogenic activity.
Stilbite is a methyl-aluminosilicate mineral with the chemical formula NaCa4Si7Al9O24·12H2O. It is a rare mineral, typically found in hydrothermal veins and cavities in basalts. Stilbite has a clear or white color and a vitreous to glassy luster. It is relatively soft, with a Mohs hardness of about 4.5-5. It is often found in association with other zeolites.<br><br>Stilbite is named after the Scottish mineralogist James Douglas Stilbok, who discovered the mineral in 1822. It has a molecular structure composed of tetrahedron units of silicon, aluminum, and oxygen atoms. Stilbite is often used as a mineral specimen for educational purposes due to its attractive crystal formation.
A vertical groove or channel, typically with a channeled texture or a lip at the top, often used in construction, architecture, or as a design element.
The word "stiles" can have several meanings depending on the context. Here are a few possible interpretations:<br><br>1. A stile is a horizontal beam or bar that is fixed diagonally across the top of a fence, gate, or wall, allowing people or animals to pass over.<br>2. In linguistics, a stile is a style or manner of writing or speaking, often characterized by a specific tone, way of expression, or grammatical structure.<br>3. In fish, throat stiles or branchial stiles refer to the bony bars or covering plates that separate the gill filaments in fish.<br><br>Without more context, it's difficult to determine which meaning is most relevant.
A woman's shoe with a long, thin heel and a pointed toe, often worn for formal occasions. It is often associated with glamour and sophistication.
High-heeled shoes for women, typically with a thin heel and a pointed or narrow toe, often worn as fashion accessories.
Born prematurely and dead, or born having died shortly after birth, and therefore not alive.
(adverb) <br><br>-used to describe that something is happening or exists at the present time, and also at the same time, something else is encountered or obtained after a period.<br><br>Example sentences:<br><br>1. I will still go to the movies tonight, and then I'll still have enough time to finish my homework.<br>2. The film was still running despite the technical issues.<br>3. She still writes in her diary every night.<br>4. I still remain worried about what might happen.<br>5. She still works part-time while studying.<br><br>Works as an adverb.<br><br> Synonyms:<br> - yet<br> - still, nonetheless, but, however, also<br> - then, now<br><br>Antonyms:<br> - no more, never, never anymore
A stillbirth is the birth of a fetus that has died before birth. It occurs when a baby dies in the womb before the 20th week of pregnancy, although it typically happens after 24 weeks. The exact date of fetal death is set as the time of fetal death, which is the time of death of the fetus, and it is not necessarily the time of delivery of the fetus.<br><br>Stillbirths are not live births (births where the baby is born alive, but dies in the first hour), and are different from miscarriage (spontaneous abortion, or early pregnancy loss) in that a miscarriage occurs before 20 weeks of gestation, whereas stillbirth occurs after 20 weeks.<br><br>Causes of stillbirth can include placental insufficiency, genetic disorders, infections, and more.