What's the difference between tinamid and tinamou?

Tinamid

Definition:

Example Sentences:

(1) The pineal organs of 10 species of tinamid birds belonging to the genera Crypturellus, Nothura, Rhynchotus and Tinamus were studied in serial microscopic sections of the entire medial region of the brain.
(2) Administration of the drug was continued, and a topical preparation of niacinamide (nico-tinamide) was applied to one half of the face and the back of one hand.
(3) This study reports the occurrence of annulate lamellae in the rudimentary photoreceptor cells of the pineal organ of a tinamid bird Crypturellus parvirostris.
(4) Our results show that morphological organization of the pineal organs in tinamids is similar to that observed for the majority of modern birds, in spite of the fact that they are generally regarded as very primitive.

Definition:

(n.) Any one of several species of South American birds belonging to Tinamus and allied genera.

Example Sentences:

(1) Except for its presence in Darwin's tinamou (Nothura darwinii) from Colorado, it has been reported only from gallinaceous birds.
(2) We have enzymatically amplified and sequenced approximately 400 base pairs of the mitochondrial 12S rRNA gene from bones and soft tissue remains of four species of moas as well as eight other species of ratite birds and a tinamou.
(3) n. is described from the crested tinamou, Eudromia elegans, of Argentina.