FLEXICOSTATE
Flex`i*cos"tate, a. Etym: [L. flexus bent + E. costate.] (Anat.)

Defn: Having bent or curved ribs.

FLEXILE
Flex"ile, a. Etym: [L. flexilis.]

Defn: Flexible; pliant; pliable; easily bent; plastic; tractable.
Wordsworth.

FLEXION
Flex"ion, n. Etym: [L. flexio: cf. F. flexion.]

1. The act of flexing or bending; a turning.

2. A bending; a part bent; a fold. Bacon.

3. (Gram.)

Defn: Syntactical change of form of words, as by declension or conjugation; inflection. Express the syntactical relations by flexion. Sir W. Hamilton.

4. (Physiol.)