verb[with object] (usually as adjective preformed)
Form (something) beforehand: a preformed pool
More example sentences
- Organs developed in this way are referred to as preformed organs.
- Short and medium shoots were self-terminated and had only preformed nodes.
- Nitrogen is more soluble than helium and any preformed bubbles will quickly absorb nitrogen.
Definition of preform in:
- The British & World English dictionary