Exam: Cambridge English: C1 Advanced (CAE)

Definition: To combine a substance with hydrogen, often to change its chemical structure, such as turning liquid oils into solid fats.

Example: The process to hydrogenate vegetable oils makes them more stable for cooking.

Definition: A chemical process where hydrogen is added to another substance, often to convert unsaturated compounds into saturated ones, typically using heat, pressure, and catalysts.

Example: The hydrogenation of vegetable oils makes them solid at room temperature.

Definition: Relating to or containing hydrogen.

Example: Water is a hydrogenous compound made up of hydrogen and oxygen.

Definition: A person who studies the distribution and movement of groundwater in the soil and rocks of the Earth's crust.

Example: The hydrogeologist conducted tests to determine the water quality in the area.

Definition: The study of how water interacts with the earth, focusing on groundwater and its movement, distribution, and effects.

Example: Hydrogeology is essential for understanding how to manage water resources effectively.

Definition: A scientist who studies and maps bodies of water, including oceans, rivers, and lakes.

Example: The hydrographer collected data to create accurate maps of the underwater terrain.

Definition: Related to the study and mapping of bodies of water, including their features like depth and flow.

Example: The hydrographic survey provided important data for the new shipping route.

Definition: The study and mapping of bodies of water, including their characteristics and distribution.

Example: Hydrography is essential for understanding the geography of lakes and rivers.

Definition: Relating to or resembling a type of small aquatic animal that is part of the class Hydrozoa, often found in marine environments.

Example: The hydroid species displayed unique characteristics that fascinated marine biologists.

Definition: A type of small sea creature that lives in colonies and has a polyp form, which is the main stage of its life cycle, rather than a jellyfish form.

Example: The hydroid colony swayed gently in the ocean currents.

Definition: Relating to the energy and movement of fluids, especially water.

Example: The hydrokinetic energy from the river can be harnessed to generate electricity.