Vocabulary

autopurificatory activity (in the natural world)

autointoxication; autotoxemia

self-pollination

self-fertilization; autogamy

complete mastery of or over; at one's beck and call

one's own (political) party

suicidal

(the crime of) aiding and abetting a suicide

one's own writing

writing oneself

self-registering thermometer

self-registering hygrometer

automatic direction finder; ADF

automatic train stop; ATS

automatic train control; ATC

automobile insurance

automobile tax; vehicle tax

car phone; car telephone

self-winding watch

automatic coupler

autopilot

self-satisfaction; self-complacency; complacency

study time

barely keeping a business going (analogy that a bicycle falls over when its wheels cease rotating)

natural person; person unspoiled by civilization; noble savage

force(s) of nature

naturalist

physical geography

(dying of) natural causes

natural law

nature conservation

natural beauty

spontaneous combustion

spontaneous generation; abiogenesis

natural foods; organic food

nature worship

natural phenomenon (phenomena)

natural selection

Japanese yam (Dioscorea japonica)

Nature Conservation Act