# a genus ( or family ): An existing definition that serves as a portion of the new definition ; all definitions with the same genus are considered members of that genus.

# Enkianthoideae ( 1 genus, 16 species )

# Cassiopoideae ( 1 genus, 12 species )

# Harrimanelloideae ( 1 genus, 2 species )

# a genus ( or family ): A pre-defined term that includes the species defined as a subtype.

# the differentia: The condition that distinguishes the species from other instances of the same genus.

# one genus: A plane figure.

# reasonable compactness – a genus should not be expanded needlessly ; and

# REDIRECT Python ( genus )

# REDIRECT Ancalagon ( genus )

# REDIRECT Nestor ( genus )

# REDIRECT Cyclopia ( genus )

# REDIRECT Ephedra ( genus )

# The synonyms must be carefully studied ; e. g., why λαὸς (" people ") is used in one passage and γένος (" genus ") in another, etc.

# A freshwater yabby is a crayfish of the genus Cherax ( infraorder Astacidea, family Parastacidae ).

# REDIRECT Capra ( genus )

# redirect Liriope ( genus )

# REDIRECT Lacerta_ ( genus )

# a genus name ( genera )

# REDIRECTSander ( genus )

# redirect Aquila ( genus )

# REDIRECT Python ( genus )

# International common strike in case of the impunity of the hijackers or in case of not letting the crew of the hijacked plane out within 48 hours ;

A triangle immersed in a saddle-shape plane ( a hyperbolic paraboloid ), as well as two diverging Hyperbolic_geometry # Non-intersecting_lines | ultraparallel lines.

# If two straight lines in a plane are crossed by another straight line ( called the transversal ), and the interior angles between the two lines and the transversal lying on one side of the transversal add up to less than two right angles, then on that side of the transversal, the two lines extended will intersect ( also called the parallel postulate ).

# Plano-polar, in which points in a plane are defined by a distance from a specified point along a ray having a specified direction with respect to a base line or axis ;

An Map projection # Azimuthal ( projections onto a plane ) | Azimuthal projection showing the Arctic Ocean and the North Pole.

# As the planet moves around its orbit during a fixed amount of time, the line from the Sun to planet sweeps a constant area of the orbital plane, regardless of which part of its orbit the planet traces during that period of time.

# The contours and plane sections of the sphere are circles.

# disk-the study of the Milky Way disk ( the plane upon which most galactic objects are aligned )

# Transformation of geographic coordinates ( longitude and latitude ) to Cartesian ( x, y ) or polar plane coordinates.

# Let p = ( p < sub > 1 </ sub >, p < sub > 2 </ sub >) and q = ( q < sub > 1 </ sub >, q < sub > 2 </ sub >) be elements of W, that is, points in the plane such that p < sub > 1 </ sub > = p < sub > 2 </ sub > and q < sub > 1 </ sub > = q < sub > 2 </ sub >.

# Let p = ( p < sub > 1 </ sub >, p < sub > 2 </ sub >) be an element of W, that is, a point in the plane such that p < sub > 1 </ sub > = p < sub > 2 </ sub >, and let c be a scalar in R. Then cp = ( cp < sub > 1 </ sub >, cp < sub > 2 </ sub >); since p < sub > 1 </ sub > = p < sub > 2 </ sub >, then cp < sub > 1 </ sub > = cp < sub > 2 </ sub >, so cp is an element of W.

Stevin's proof of the Inclined plane # History | law of equilibrium on an inclined plane, known as the " Epitaph of Stevinus ".

# On May 6, 1935, a plane carrying Senator Bronson Cutting of New Mexico crashed south of Kirksville, killing him.

# Squashing the preparation on the slide forcing the chromosomes into a single plane

# a fault where the relative movement ( or slip ) on the fault plane is approximately vertical is known as a dip-slip fault

The switch to the T-38 also saw an alteration of the flight routine to exhibit the aircraft's maneuverability in tight turns, and also ended the era of the black tail on the # 4 slot plane, which would now be regularly cleaned and shined like the others.

# The draconic month or nodal month is the period in which the Moon returns to the same node of its orbit ; the nodes are the two points where the Moon's orbit crosses the plane of the Earth's orbit.

# Coplanar structure, with all the contributing atoms in the same plane

Gary Jackson allegedly died in issue # 53 in a plane crash.

# REDIRECT John F. Kennedy, Jr. plane crash

# Providing a plane of separation, or disconnection, between solid tissues so that movement can occur with minimum bending of solid components.

# the complex plane