Definition: The process or arrangement of how a placenta forms and attaches in the uterus or within a plant ovary.

Example: The study of placentation is important for understanding both plant reproduction and human pregnancy.

Definition: A type of mineral that is part of a group of feldspar minerals, commonly found in many types of rocks, and made up of sodium and calcium aluminum silicates.

Example: Plagioclase is often used in geology to identify different types of igneous rocks.

Definition: Relating to a flat surface or having two dimensions.

Example: The architect designed a planar structure that blended seamlessly with the landscape.

Definition: The state or quality of being flat or two-dimensional.

Example: The planarity of the surface is essential for the construction of the building.

Definition: A flat, round piece of metal that is used to make coins or hold substances for measurement.

Example: The mint received a shipment of planchets to begin producing new coins.

Definition: The shape or outline of an object when viewed from above, often used in reference to aircraft or other structures.

Example: The engineer created a detailed planform of the new airplane design.

Definition: Relating to a flat representation of an area, without showing height or depth.

Example: The architect used a planimetric drawing to illustrate the layout of the building.

Definition: A term related to the measurement of two-dimensional surfaces or areas, often used in fields like cartography and geography.

Example: The architect used planimetric techniques to create accurate representations of the land.

Definition: Referring to a type of hull that is designed to rise partially out of the water when moving quickly, allowing for faster speeds and reduced drag.

Example: The planing boat glided smoothly over the waves as it picked up speed.

Definition: To smooth or level a surface using a tool called a plane.

Example: He is planing the wooden board to make it flat.

Definition: To make a surface smooth by rolling or hammering it, especially in the context of metalwork.

Example: The blacksmith will planish the metal to give it a shiny finish.

Definition: A method of printing that uses a flat surface to create images or text, often associated with techniques like lithography or offset printing.

Example: The artist used planography to produce high-quality prints of her artwork.