Definition of Pectoral fin

1. Noun. Either of a pair of fins situated just behind the head in fishes that help control the direction of movement.

Generic synonyms: Fin

Definition of Pectoral fin

1. Noun. (ichthyology) Either of two fins located on each side of a fish just behind the head. ¹

¹ Source:

Pectoral Fin Pictures

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Lexicographical Neighbors of Pectoral Fin

pectoral and abdominal anterior cutaneous branch of intercostal nerves
pectoral arch
pectoral branch of thoracoacromial artery
pectoral fascia
pectoral fin (current term)
pectoral fins
pectoral girdle
pectoral girdles
pectoral glands
pectoral group of axillary lymph nodes
pectoral medallion
pectoral muscle
pectoral muscles
pectoral reflex
pectoral region
pectoral ridge
pectoral sandpiper
pectoral vein
pectoral veins

Literary usage of Pectoral fin

Below you will find example usage of this term as found in modern and/or classical literature:

1. Encyclopaedia Britannica: A Standard Work of Reference in Art, Literature (1907)
"... length of base of dorsal fin, 8 inches; length of pectoral fin, 9} inches; breadth of pectoral fin, 3i inches; breadth of tail flukes, 13 inches. ..."

2. Bulletin of the American Museum of Natural History by American Museum of Natural History (1904)
"V. 52 is the last vertebra in which there is a distinct rib- articulation on the centrum. V. 53 and V. 54 apparently Fig. 3. Right pectoral fin of the ..."

3. The Encyclopedia Americana: A Library of Universal Knowledge (1918)
"There is usually a stout, generally serrated, spine in front of the dorsal fin, and often another in front of each pectoral fin. These spines are likely to ..."

4. Organic Evolution by Richard Swann Lull (1917)
"... bear no genetic relationship to the equivalent fins of fishes, the principal proof thereof lying in the fact that there FIG. 141.—Right pectoral fin of ..."

5. Text-book of Paleontology by Karl Alfred von Zittel (1902)
"In the same manner the base of the pectoral fin in the removed, nw, Meso- « .. ^ , , . . , , . , With outer dermal rays Teleostei (Fig. ..."

6. Proceedings of the American Philosophical Society Held at Philadelphia for by American Philosophical Society (1878)
"Total length M. .230 ; of dorsal spine .023 ; of pectoral fin .045. Color above blackish, below brown ; lower part of sides, chiefly behind pectoral fin ..."

7. Popular Science Monthly (1902)
"The next point of interest is found in the change of position of the pectoral fin by a rotation on its base. This is associated with changes in the ..."

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