(Latin: of, relating to, or resembling; compound of the suffixes -ule, "little, small" and -ar, "pertaining to, of the nature of, like"; and so, -ular is a combining form meaning: referring to something "specified": appendicular, molecular, pedicular; as well as, a combining form meaning "resembling" something specified: circular, globular, tubular)

articular (adjective) (not comparable)
Relating to a joint or joints in a body: The articular surfaces of bones can be affected by diseases, strains, or damages that result from falling down.
auricular (adjective), more auricular, most auricular
1. Pertaining to the outer ear: An auricular administration of drops into her organ of hearing was necessary because little Jenny had an infection in her auditory system.
2. Characteristic of something which is perceived by or spoken into the ears: An auricular communication or statement is perceived via the body parts that function so people can listen.

The reception of words by a person when listening to others is an auricular process with the ears.

Something that is told privately in the ear.
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Referring to a secret that is told in the ear.
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avascular (adjective), more avascular, most avascular
Lacking in blood vessels or having a poor blood supply: Avascular necrosis is the death of body tissue because the blood supply has been cut off.

Dr. MacSween told Ralph that the avascular blood vessels and other tissues in his body were unable to provide sufficient blood to his bones and other body organs.

Some plants can also have avascular systems which are not able to carry sufficient water and nutrients throughout their systems.

avicular (adjective) (not comparable)
Of, like, or pertaining to birds: Joshua had a high interest in learning more about where he can find more avicular creatures for the customers of his pet store.
avuncular (uh VUNG kyuh luhr) (s) (adjective), more avuncular, most avuncular
1. Relating to a maternal uncle or mother's brother.
2. Regarded as characteristic of an uncle, especially in benevolence or tolerance; like an uncle in kindness or indulgence.
3. In medical genetics, pertaining to an aunt or uncle.
4. Etymology: from the Latin avunculus, "maternal uncle". The feminine equivalent of avuncular is materteral, "like an aunt".

An avuncular relationship is the genetic relationship between aunts and uncles and their nieces and nephews.

Dwight David Eisenhower, as U.S. President (1953 to 1961), was the amiable uncle, but his reputation as an indifferent manager evaporated once scholars got a look at his papers, which showed a much more engaged and sophisticated player than the avuncular image he cultivated.

—Compiled from "Does Temperament Matter?" by Nancy Gibbs in
TIME, October 27, 2008, pages 38-39.

"He himself [Josemaría Escrivá] was a polarizing figure, humble and grandiose, avuncular and ferocious."

—As seen in "The ways of Opus Dei", Time; April 24, 2006; pages 37-38.
biangular (buy-ANG-you-luhr) (adjective) (usually not comparable)
Pertaining to something that has two divergent sides: The Grande Arche of France is considered to be a biangular structure because the building is shaped like an upside down V.
1. With both eyes, as in binocular vision.
2. With two eyepieces, as in a binocular microscope.
3. Involving or using both eyes, or relating to vision using both eyes.

As stated above, binoculars are field glasses adapted to the use of both eyes, in contrast with the telescope, which is a monocular instrument.

binocular vision (s) (noun), binocular visions (pl)
The simultaneous use of both eyes, resulting in seeing which incorporates images with depth perception.
bivalvular (adjective), more bivalvular, most bivalvular
Pertaining to an animal that has a soft body with no bones which is usually covered by a hard shell; as well as some seeds of certain plants: "The bivalvular creatures have two shells and they consume small particles from the water by filtering them."

"Oysters and mussels, permanently attach themselves to hard surfaces as adults and the foot is sedge-shaped and is used for digging in the sand or mud where they secrete tough attachment threads."

1. Of or relating to the dog days of summer: "The canicular heat of the Deep South."
2. Relating to or especially immediately preceding or following the heliacal rising of Canicula (the Dog Star); "canicular days."
3. Etymology: Latin canicularis through French caniculaire.
Of, relating to, or involving the heart and the blood vessels: "She has a cardiovascular disease which needs immediate medical attention."