Exam: IELTS

Definition: A term used in biology to describe a double star or the stage in cell division when the nuclear material separates into two groups.

Example: During the process of cell division, the diaster stage is crucial for the formation of two daughter nuclei.

Definition: The phase of the heartbeat when the heart muscles relax and the chambers fill with blood.

Example: During diastole, the heart chambers expand to receive blood from the body and lungs.

Definition: Related to the phase of the heartbeat when the heart muscle relaxes and fills with blood.

Example: The doctor explained that the diastolic pressure is an important measure of heart health.

Definition: A medical treatment that uses high-frequency electric currents to generate heat in body tissues, often for therapeutic or surgical purposes.

Example: The doctor recommended diathermy to help relieve the patient's muscle pain.

Definition: A natural tendency or inherited condition that makes a person more likely to develop a certain disease or disorder.

Example: The doctor explained that her family history indicated a diathesis for heart disease.

Definition: A type of tiny, single-celled algae that have a hard outer shell made of silica. They are often found in water and can be either alone or in groups.

Example: Diatoms play an important role in the aquatic food chain and are used in various scientific studies.

Definition: Relating to or made from diatoms, which are tiny, aquatic organisms with silica-based cell walls.

Example: The diatomaceous earth is often used as a natural pesticide in gardens.

Definition: Referring to a molecule that is composed of two atoms, which can be the same or different elements.

Example: Oxygen exists as a diatomic molecule, meaning each molecule is made up of two oxygen atoms.

Definition: A fine powder made from the remains of tiny aquatic organisms called diatoms, used in various industries for filtering, absorbing, and insulating.

Example: The company uses diatomite as a natural filter in its water purification system.

Definition: A type of volcanic vent that is shaped like a cone and is created when gas-filled magma explodes.

Example: The geologists studied the diatreme to understand the volcanic activity in the area.