molecule
/ˈmɒlɪkjuːl
/noun Chemistry
A group of atoms bonded together, representing the smallest fundamental unit of a chemical compound that can take part in a chemical reaction.It works by affecting a molecule called nitric oxide, which expands blood vessels....
- In the water molecule there are three atoms: two of hydrogen and one of oxygen.
- The reactant ions have enough energy to ionise the molecules of interest but not enough to break them up.
Origin
Late 18th century: from French molécule, from modern Latin molecula, diminutive of Latin moles 'mass'.
- respell
- respew
- resphere
- Respighi, Ottorino
- respin
- respirability
- respirable
- respirant
- respirate
- respiration
- respirational
- respiration rate
- respirative
- respirator
- respiratored
- respiratory
- respiratory acidosis
- respiratory alkalosis
- respiratory center
- respiratory centre
- respiratory chain
- respiratory distress syndrome
- respiratory pigment
- respiratory quotient
- respiratory syncytial virus