Definition: An act of interfering or intruding into a space or situation where one is not welcome.

Example: The obtrusion of the new building into the historic district caused a lot of controversy.

Definition: To block or close something, especially a passage or opening.

Example: The dentist had to obturate the tooth to prevent further decay.

Definition: The action of blocking or sealing an opening.

Example: The obturation of the pipe prevented any leaks from occurring.

Definition: A device or structure that closes an opening in the body, often used in medical contexts.

Example: The surgeon used an obturator to close the gap in the patient's palate.

Definition: Not sharp or pointed; lacking in quickness of perception or intellect; dull.

Example: His obtuser remarks showed that he didn't understand the situation well.

Definition: A person who prevents or avoids something from happening, especially difficulties or problems.

Example: The obviator of the issue proposed a solution that satisfied everyone.

Definition: An object that blocks light from reaching an observer, often used in astronomy to describe events where one object obscures another.

Example: The occulter was used to study the stars by blocking the light from a nearby planet.

Definition: A group or sequence that consists of eight items or elements.

Example: The team was divided into an octad for the project.

Definition: Relating to a group of eight or something that is made up of eight parts.

Example: The octadic structure of the data set allowed for more efficient analysis.

Definition: Describing a shape that has eight flat surfaces or faces.

Example: The crystal had an octahedral shape, making it look like two pyramids joined at their bases.