for·myl 
(fôrmĭl′)
(fôrmĭl′)n.
The univalent carbonyl-containing group HCO, characteristic of aldehydes.
[FORM(IC ACID) + -YL.]
- companionway
- company
- company-grade officer
- company man
- company town
- company woman
- comparability
- comparable
- comparableness
- comparable worth
- comparably
- comparatist
- comparative
- comparatively
- comparative method
- comparator
- compare
- compare notes
- comparer
- comparison
- comparison-shop
- compart
- compartment
- compartmental
- compartmentalization