As adjectives the difference between anisotropic and anisotopic

is that anisotropic is having properties that differ according to the direction of measurement; exhibiting anisotropy while anisotopic is lacking isotopy.

As nouns the difference between superposition and anticross

is that superposition is the placing of one thing on top of another while anticross is a case of anticrossing.

As a verb anticross is

to fail to cross in a graph of energy vs. electric field strength; characteristic of coherent superposition states.

Hbq is a synonym of hectobecquerel.

As a symbol hbq

is .

As a noun hectobecquerel is

.

Attohertz is a synonym of ahz.

Ahz is likely misspelled.

Ahz has no English definition.

As a noun attohertz is

{{SI-unit-np|atto|hertz|frequency}.

Picosiemens is a derived term of ps.

As nouns the difference between ps and picosiemens

is that ps is plural of lang=en while picosiemens is {{SI-unit-np|pico|siemens|electrical conductance}.

As an initialism PS

is post scriptum, postscriptum, postscript (initialism written at the end of a text as a footnote.

As proper nouns the difference between aragatsotn and ttujur

is that aragatsotn is a region (marz) of the republic of armenia while ttujur is a village in the aragatsotn region of armenia.

As an adjective armenia

is .

As a proper noun ttujur is

a village in the aragatsotn region of armenia.

Petabecquerel is a derived term of pbq.

Pbq is likely misspelled.

Pbq has no English definition.

As a noun petabecquerel is

{{SI-unit|peta|becquerel|radioactivity}.

As nouns the difference between biogeochemistry and biogeochemist

is that biogeochemistry is (biology|geology|chemistry|ecology) the scientific study of biological, geological and chemical processes in the natural environment and especially of their mutual relationships while biogeochemist is a scholar in the field of biogeochemistry, the study of the chemical, geological and biological factors that govern the composition of the natural environment.

As a noun apocenter

is (astronomy) the furthest point of an astronomical object in an elliptical orbit to its center of attraction (the principal focus of the ellipse).

As an adjective apocentric is

(astrophysics) of or pertaining to the apocenter, the point in an orbit which is furthest from the orbited body.