Vocabulary

plunger pump

layered

ID photo; passport photo

spinal anesthesia

Western Front (of WWI)

natural language processing; NLP

Japanese classical musical instruments

formal language

context-free language

regular language

sociologist

African-American music

body ornamentation (adornment, tattoos, etc.)

nematic liquid crystal

rationalistic philosophy

microeconomics

eclipse

impurity level

audio file format

traditional Chinese medicine

occupational therapist

United Nations Special Commission; UNSCOM

chatterbot; chatbot

composite number; composite quantity

localism; regionalism

orthogonalized plane wave; OPW

highly composite number

complementary DNA

expression of love; showing love

Hamiltonian

Laplace's demon

Laplace's demon

Kant-Laplace nebular hypothesis

tidal hypothesis (of the origin of the solar system); near-collision hypothesis

Schrödinger equation

equation of motion

operational calculus

operator

Lysenkoism

Weismannism