Definition: Describing a substance that consists of only one atom, such as helium, which exists as single atoms rather than in pairs or groups.

Example: Helium is a monatomic gas, meaning it is made up of individual atoms rather than molecules.

Definition: Relating to or having one axis.

Example: The monaxial design of the machine allows it to operate efficiently along a single line.

Definition: A type of sponge spicule or a nerve cell that has only one axon.

Example: The scientist studied the monaxon to understand its role in the sponge's structure.

Definition: A reddish-brown or yellow mineral that contains rare-earth metals and is used as a source of cerium and thorium.

Example: Monazite is often found in sand and gravel deposits and is important for extracting rare-earth elements.

Definition: Having a shape that looks like a string of beads, often used to describe certain plant roots or insect antennae that are jointed or constricted at regular intervals.

Example: The moniliform roots of the plant give it a unique appearance.

Definition: A solid piece made from a single material, often used in manufacturing to ensure strength and durability.

Example: The chair was designed as a monobloc, making it both lightweight and sturdy.

Definition: Referring to a type of organic compound that has only one carboxyl group in its structure.

Example: Acetic acid is a common example of a monocarboxylic acid.

Definition: A type of flower arrangement where there is only one flower on each stem or branch.

Example: The plant's monochasium displayed a single beautiful flower at the end of each stem.

Definition: A musical instrument that has one string stretched over a box, used to explore musical sounds and their relationships.

Example: The musician used a monochord to demonstrate the different pitches of sound.

Definition: A device that separates light into different colors or wavelengths, allowing only a specific range to pass through.

Example: The scientist used a monochromator to analyze the light spectrum of the sample.