He deeply respects his grandfather.

Hydrocarbon is a basic element of chemical reactions.

He lined his pockets with that project.

He was taken to the hospital because of pulmonary edema.

Heavy hydrogen is one of the isotopes of hydrogen.

She is interested in numerology.

Combinatorial mathematics is a branch of mathematics that studies the combinations of things.

He is majoring in applied mathematics at university.

The number subtracted from the minuend is called the subtrahend.

He is studying phallicism.