Definition: A part of a plant that serves as the main axis of a flower cluster or the central stem of a feather.

Example: The rhachis of the feather supports the barbs that create its structure.

Definition: A type of sugar that is found in some plants, especially in the leaves and flowers of poison ivy, and is part of certain plant compounds.

Example: Rhamnose is often used in research related to plant biology and glycosides.

Definition: A line or ridge that marks the junction of two parts, often found in biological structures.

Example: The rhaphe is an important feature in the anatomy of certain organisms.

Definition: Relating to or derived from a verb.

Example: The rhematic form of the word helps to understand its grammatical function.

Definition: A theory or doctrine that focuses on the nature and structure of propositions or sentences.

Example: The study of rhematic helps us understand how sentences convey meaning.

Definition: A rare and heavy metallic element that is silvery-white and has a very high melting point. It is used in electrical contacts and high-temperature thermocouples.

Example: Rhenium is often used in jet engines due to its ability to withstand high temperatures.

Definition: The smallest amount of electric current needed to cause a nerve or muscle cell to become active and generate an action potential.

Example: The doctor measured the rheobase to determine the excitability of the patient's nerve.

Definition: Relating to the study of how materials deform and flow under stress.

Example: The rheologic properties of the fluid determine how it will behave under pressure.

Definition: Relating to the study of how materials flow and deform under stress.

Example: The rheological properties of the fluid determine how it will behave in different conditions.

Definition: In a way that relates to the study of the flow and deformation of matter, especially in response to applied forces.

Example: The material behaves rheologically under different temperature conditions.

Definition: A person who studies the flow and deformation of materials, especially liquids and soft solids.

Example: The rheologist conducted experiments to understand how different substances behave under stress.