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Kyūjitai form of 光化学 (“photochemistry”).
Photochemistry is a branch of science that studies how chemical reactions proceed under the influence of light.
(physics) photoelectric effect
The photoelectric effect is a phenomenon where a material emits electrons after absorbing light.
(linear algebra) positive-semidefinite matrix
A positive-semidefinite matrix is one of the important concepts in linear algebra.
tetrahemihexahedron
He is studying the shape of a tetrahemihexahedron.
(anatomy) a semispinalis capitis muscle
The semispinalis capitis muscle is a part of the neck muscles, helping to tilt the head backwards.
a semitendinosus muscle
He injured his semitendinosus muscle.
a semimembranosus muscle
He injured his semimembranosus muscle.
(anatomy) a semispinalis thoracis muscle
The semispinalis thoracis muscle is a deep muscle in the back that supports movement from the neck to the waist.
(anatomy) a semispinalis cervicis muscle
The semispinalis cervicis muscle is a part of the neck muscles, helping to pull the head back.
cubohemioctahedron
This model of the cubohemioctahedron is very beautiful, isn't it?
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