extra, extra-, extro-, extr-, exter-

An impressive and large celebration: Most nations have special extravaganzas or events for special days; for example, Christmas, New Year, Ramadan (the holiest period of the Islamic faith), etc.

1. Chiefly medicine, referring to how lymph or life fluid is pushed through the vessel’s surrounding tissue: When Timmy fell down and hurt his knee badly, the blood extravasated into the area around the wound causing it to bruise and turn black and blue!
2. In geology, descriptive of the gushing forth of molten lava from an erupting volcano: The students in the geology class at school learned about how houses and villages in mountainous areas can be destroyed when volcanos extravasate and emit hot gas, rocks, ash, and melted rock through its vent at the top and into the air.

1. The release of blood or lymph from their vessels into the adjacent tissue: Not only did Janet bleed after hurting herself during the bicycle accident, but she also noticed an extravasation in her right arm, which was badly bruised.
2. The emission of volcanic products, like ash and fumes, from the Earth: The soil resulting from the extravasation of Etna, one of the world’s most active volcanos, is very fertile and is used in agriculture; for example, in orchards and vineyards.

Pertaining to something that is located or occurring outside a blood or lymph vessel of the body: Examples of extravascular or non-vascular areas in the body are cartilages or cuticles, because these parts do not contain a person’s life fluid.

A psychological term that indicates someone who finds it essential to have as many friendships with others as possible: Extraversion is a condition in which someone prefers being with and socializing with people as often as possible, rather than being isolated from their companionships.

The contents of this extraversion entry also applies to the extroversion entry; in other words, they are synonymous with each other or one means the same thing as the other one.

The process of observing attentively and carefully: Extrospection is quite important when monitoring a patient after surgery to see if his or her condition is stable and can then be allowed to be moved to the ward.

An interest in and a significant involvement with other people by being friendly and outgoing and taking advantage of having as many cordial relations with them whenever there is an opportunity to do it: Ted's extroversion apparently makes him a good public relations officer.

The contents of this extroversion entry also applies to the extraversion entry; in other words, they are synonymous with each other or one means the same thing as the other one.

1. A person whose interests are constantly directed outward to other people and to his or her environment: Usually extroverts are active, energetic, sociable, easy to talk with, and have many outside interests and concerns.
2. Etymology: from Latin extra-, "outside" + vertere, "to turn"; an alteration of the earlier extravert

The noun form of extravert is also accepted as a proper spelling for this extrovert entry

A reference to being confident and happy in social relations with other people: Mr. Jonas thought that James was the most extroverted, amicable, and open member of his psychology class.

The adjective extraverted is accepted as a proper synonym for this entry.

1. Relating to what is different from what is usual, normal, or expected: While Jill was walking in the forest with Jim, they saw a strange creature which frightened them.

Andrea had a strange feeling when the phone rang and woke her up at 2 a.m.

Strange as it may seem, Jerome doesn't like to walk barefooted on the grass.

2. A reference to something that is not being known, heard, or seen before: Jane's new acquaintance spoke a language that was strange to her.

When Frank's family went on a trip, they arrived in a strange town which they had never encountered before.

3. Etymology: from Latin extraneus, "foreign, unfamiliar, external, from without; outside" and then via French, in which the Latin x sound was changed to an -s sound.

Characteristic of being surprisingly abnormal or unusual in a way that is hard to understand: The first night Karen stayed in her new house it was strangely quiet.

Strangely enough, the staff was able to perform the assigned task without difficulty.

The quality or state of being odd or weird: The strangeness of the Smith family's trip was that they had no firm plan as to where they would be going.

1. An unknown person: Alex felt that everyone at the party was a stranger to him because he didn’t recognize anyone.
2. An outsider, a newcomer, or a foreigner: Jerome realized that it is hard for a stranger to make friends in the town that he had moved to for a new job.
3. Etymology: based on extra, "outward, outside"; and goes back to extranearius, a Latin derivative of extraneus and extraneare, "to alienate".