protomammal
noun
(An informal name for) a hypothetical primitive mammal or a known evolutionary ancestor of the mammals.
Origin
1930s.
- mono
- mono-
- monoacetin
- monoacid
- monoacidic
- monoalphabetic
- monoamine
- monoamine oxidase
- monoamine oxidase inhibitor
- monoaminergic
- monoamniotic
- monoanaesthesia
- monoanesthesia
- monoanion
- monoanionic
- monoanthropism
- monoao
- monoarthritic
- monoarthritis
- monoarticular
- monoaxial
- monoaxially
- monobactam
- monobasic
- monobath