plural noun
Meth·​a·​no·​mon·​a·​da·​ce·​ae | \ ¦methə(ˌ)nōˌmänəˈdāsēˌē\

Definition of Methanomonadaceae

: a family of gram-negative rod-shaped soil and water bacteria (order Pseudomonadales) that obtain energy by oxidizing simple carbon and hydrogen compounds and are often motile by means of polar flagella

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History and Etymology for Methanomonadaceae

New Latin, from Methanomonad-, Methanomonas, type genus (from International Scientific Vocabulary methane + New Latin -o- + -monad-, -monas) + -aceae

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a usually brief trip or an expedition

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