zooplankton/zoh·əʹplangktən, -ton/ noun

• think out
• think out of/outside the box
• think over
• think tank
• think the world of
• think through
• think twice
• think up
• thin-layer chromatography
• thinner
• thin-skinned
• thio-
• thiol
• thiopental
• thiopentone
• thiosulphate
• thiourea
• third
• third age
• third class
• third-class
• third degree
• third-degree burn
• third dimension
• third estate