1. Microscopic unicellular marine or freshwater colonial alga having cell walls impregnated with silica

Derived forms: diatoms

Type of: alga, algae, phytoplankton

Part of: Bacillariophyceae, class Bacillariophyceae, class Diatomophyceae, Diatomophyceae

Encyclopedia: Diatom

• throw a spanner in the works
• throw a wobbly
• throw cold water on
• throw in the towel
• throw off
• throw out
• throw out of kilter
• throw overboard
• throw pillow
• throw rug
• throw stick
• throw together
• throw up
• throw-in
• throw-weight
• throwaway
• throwback
• thrower
• throwing away
• throwing board
• throwing stick
• thrown
• thrown and twisted
• thrown-away
• throwster