Definition: Relating to saliva or a type of acid derived from it, or describing a light rock that contains silica and alumina, commonly found in the Earth's outer layers.

Example: The sialic properties of the rock make it lighter than other types of stone.

Definition: A type of insect that belongs to the family Sialidae, commonly known as alderflies.

Example: The sialid is often found near water, where it lays its eggs.

Definition: A light that comes from the side or additional information that is not the main focus.

Example: The sidelights of the ship helped other vessels see it at night.

Definition: A type of mineral that is primarily made of iron carbonate and is used as an important source of iron.

Example: Siderite is often found in sedimentary rocks and is mined for its iron content.

Definition: A unit used to measure how easily electricity can flow through a material, equal to one ampere per volt.

Example: The electrical circuit requires a conductance of two siemens for optimal performance.

Definition: A unit of measurement for ionizing radiation that indicates the biological effect of radiation on human tissue.

Example: The radiation dose was measured in sieverts to assess the potential health risks.

Definition: Having a shape similar to the Greek letter sigma, which looks like a stylized 'S'.

Example: The architect designed the building with sigmate curves to give it a unique appearance.

Definition: Having a shape that resembles the letter S, often used to describe certain curves or structures in anatomy and mathematics.

Example: The graph of the function has a sigmoid shape, rising gradually before leveling off.

Definition: Describing something that has a shape similar to an S-curve, often used in mathematics and biology.

Example: The growth of the population followed a sigmoidal pattern, indicating a slow start, rapid growth, and then a plateau.

Definition: A type of chemical compound made of silicon and hydrogen, similar to hydrocarbons, with the general formula SiH.

Example: Silane is often used in the production of silicone materials.