Perfume (disambiguation)

Perfume is a mixture of fragrant essential oils and aroma compounds, fixatives, and solvents used to give a pleasant smell.

Perfume may also refer to:

Music

Songs and albums

Other uses

Group

Group may refer to:

Groups of people

In science and technology

In mathematics

In chemistry

In computing and the internet

Other uses in science and technology

Other uses

Shot grouping

In shooting, a shot grouping, or simply grouping, is the placement of multiple shots on a target, the shots taken in one shooting session. The closeness of the grouping, the nearness of all the shots to each other, is a measure of the accuracy of a weapon, and a measure of the shooter's consistency and skill.

Uses of the term

For firearms that shoot one round at a time, a shot grouping can be used to measure the accuracy of the system comprised out of weapon as well as the precision and uniformity of the ammunition by fixing the weapon into position on a test mount, and aiming it at a target. Multiple shots using rounds from same type and batch are fired to observe how the weapon groups the shots. If a person holds the weapon and shoots it, the grouping measures the combination of the person's skill and the weapon's accuracy.

In shotgun shooting, the grouping is also called the pattern. The pattern is the spread of shot from a single shotgun shell, measured as the smallest circle containing all the shots on the target. The barrel of a shotgun is designed to deliver a wide or narrow grouping, depending on the expected use. Shooting at close range indicates a cylinder bore barrel to deliver a wide grouping, while for hunting at longer distances such as 50 yards or meters, a choke is recommended for a tighter grouping.

Stratigraphic unit

A stratigraphic unit is a volume of rock of identifiable origin and relative age range that is defined by the distinctive and dominant, easily mapped and recognizable petrographic, lithologic or paleontologic features (facies) that characterize it.

Units must be mappable and distinct from one another, but the contact need not be particularly distinct. For instance, a unit may be defined by terms such as "when the sandstone component exceeds 75%".

Lithostratigraphic units

Sequences of sedimentary and volcanic rocks are subdivided on the basis of their lithology. Going from smaller to larger in scale, the main units recognised are Bed, Member, Formation, Group and Supergroup.

Bed

A bed is a lithologically distinct layer within a member or formation and is the smallest recognisable stratigraphic unit. These are not normally named, but may be in the case of a marker horizon.

Member

A member is a named lithologically distinct part of a formation. Not all formations are subdivided in this way and even where they are recognized, they may only form part of the formation.

Perfume (Britney Spears song)

"Perfume" is a song recorded by American singer Britney Spears for her eighth studio album, Britney Jean (2013). It was written by Spears, Sia Furler and Christopher Braide, while the song was produced by will.i.am and co-produced by Keith Harris and Braide. The song was released as the second and final single from the album on November 4, 2013 by RCA Records. "Perfume" is a synthpop power ballad, which is influenced by music of the 1980s. Lyrically, the song is built around themes of jealousy and suspicion in a relationship. Spears revealed that the song was about her split with her ex-fiancé, Jason Trawick, in early 2013.

A musical departure from its EDM-influenced predecessor, "Work Bitch", the song was met with acclaim from music critics, who noted her "surprisingly strong" vocals, and compared them to those of Gwen Stefani. Worldwide, the song performed weakly in official charts, peaking at number 76 in the United States and within the top 70 in Australia, Canada and Ireland. The music video for "Perfume" was directed by Joseph Kahn and released in December 2013. Spears' love interest in the video leaves her for another woman, while Spears is left devastated. Kahn mentioned that there is an unreleased director's cut version of the video, where Spears role in the video is actually an assassin hired to kill her boyfriend. Spears included the song on her current residency concert Britney: Piece of Me (2013–15). The song has nearly sold 303,460 copies in the United States.