Definition: A rare and radioactive metal that glows in the dark and is found in small amounts in certain minerals. It is used in medical treatments and in some types of paints that shine.

Example: Radium was once commonly used in cancer treatment before safer alternatives were discovered.

Definition: Describing something that has a rounded or curved edge, often referring to shapes or objects that are not sharp or angular.

Example: The table has a radiused edge to prevent injuries.

Definition: A protective cover that is shaped like a dome and allows radio waves to pass through, used to protect radar antennas.

Example: The aircraft was equipped with a radome to shield its radar system from the elements.

Definition: A thin, chaffy scale or outgrowth found on the surface of plants, especially on young shoots and ferns.

Example: The ramentum on the fern's stalks helps protect the young leaves as they grow.

Definition: To develop or spread out into branches or parts, often leading to more complex situations or consequences.

Example: The discussion began to ramify into several different topics.

Definition: To cause something to split into branches or to develop in a way that creates different parts or consequences.

Example: The new policy will ramify into various sectors of the economy.

Definition: A type of engine that uses the speed of an aircraft to compress air for combustion, producing thrust without mechanical parts.

Example: The ramjet engine allowed the missile to reach high speeds quickly.

Definition: Describing something that has been changed or arranged in a random way, often to ensure fairness or variety.

Example: The study used a randomized selection of participants to avoid bias.

Definition: To arrange or select things in a way that is not predictable or ordered, often by chance.

Example: The researchers randomized the participants to ensure unbiased results.

Definition: Describing something that can be varied or adjusted within certain limits.

Example: The ranged settings on the device allow users to customize their experience.

Definition: To have a variety or a specific extent in terms of distance, amount, or type.

Example: The prices of the products ranged from low to high.

Definition: A type of warship that has had its upper deck removed to make it smaller and of a lower classification.

Example: The navy decided to razee several of its older ships to save on maintenance costs.

Definition: To reduce the height of a ship by cutting off part of its structure, usually to make it smaller or less capable.

Example: The old ship was razeed to make it easier to manage in shallow waters.

Definition: The opposition to the flow of alternating current in an electrical circuit, caused by inductance and capacitance rather than resistance.

Example: The reactance in the circuit increased as the frequency of the alternating current rose.