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The Collaborative International Dictionary
Rectus

Rectus \Rec"tus\ (-t?s), n.; pl. Recti (-t?). [NL., fr. L. regere to keep straight.] (Anat.) A straight muscle; as, the recti of the eye.

Wiktionary
rectus

n. (context anatomy English) Any of several straight muscles in various parts of the body, as of the abdomen, thigh, eye etc.

WordNet
rectus
  1. n. any of various straight muscles

  2. [also: recti (pl)]

Wikipedia
Rectus

"Rectus" is the Latin word meaning "straight" and is used in English to refer to multiple topics in the sciences, including:

In molecular chemistry the R in the R & S isomerism stands for "rectus"

In grammar "casus rectus" is a formal term for nominative case

In mathematics sine is also known as "sinus rectus"

In the classification of the animal kingdom it is the systematic taxonomic name of several species, e.g. campylobacter rectus & syllitus rectus

In anatomy it is used to refer to a rectus muscle, primarily e.g. the " rectus abdominis muscle"; in anatomy it can also refer to:

  • Inferior rectus muscle
  • Superior rectus muscle
  • Lateral rectus muscle
  • Medial rectus muscle
  • Musculus rectus thoracis
  • Rectus capitis lateralis muscle
  • Rectus femoris muscle
& et cetera

Usage examples of "rectus".

It arises from the pons a little before its junction with the medulla and leads to the external rectus muscle of the eyeball.

Caught between the two metal edges it had been chopped through and almost severed, the femur was sheared and the lower part of the leg dangled, connected only by some skin and the crushed remains of the rectus and sartorius muscles.

Shanghai: a step unit done up in Beaux-Arts ironmongery, a rowing machine cleverly fashioned of writhing sea-serpents and hard-bodied nereids, a rack of free weights supported by four callipygious caryatids-not chunky Greeks but modern women, one of each major racial group, each tricep, gluteus, latissimus, sartorius, and rectus abdominus casting its own highlight.

The first severs the rectus abdominis and the external abdominal muscles, following the rib line to the right ilium.

We encounter for example the rectus femoris, the saphenous nerve, the iliotibial tract, the femoral artery, the vastus medialis, the vastus lateralis, the vastus intermedius, the gracilis, the adductor magnus, the adductor longus, the intermediate femoral cutaneous nerve and other simple premechanical devices of this nature.

The actress lifted her right leg, marveling at the swell of her own thigh muscles, at the definition between rectus femoris and vastus medialis.

The other two, the superior and inferior oblique muscles, aid in certain movements of the recti muscles and, in addition, serve to rotate the eyes slightly.

In each act of seeing, it becomes the task of the superior and inferior recti muscles to keep the eyes in the same plane, and of the external and internal recti muscles to give just the right amount of convergence.

Of course I do not think it necessary to include rare, but already described anomalies, such as the episternal bones, the rectus sternalis, and other interesting exceptional formations I have encountered, which have shown a curious tendency to present themselves several times in the same season, perhaps because the first specimen found calls our attention to any we may subsequently meet with.

Security lady at the Rectus Bulbi and down to the YYY studio's freezing pink basement, where the only person who didn't talk like an angry cartoon character, a severely carbuncular man at the engineer's board, would by way of comment point only at a tripartite onionskin screen that stood folded beneath a handless wall-clock, possibly signifying that no hiatus could be all that long if the absent party hadn't taken her trusty screen.

I turned slightly to one side, tensing and relaxing my abdominalsobliqucs in decent toile, the rectus abdominis flattening almost to concavity.

What her redaction could not do immediately was restore the ruined sartorius and rectus femoris muscles of her upper leg.

I used my own knee and insisted, presenting strike after strike and going beyond the matter of physical force and adding the strength of zen and two or three times his breath was caught in his throat and I knew I'd given pain and perhaps with any luck had found a nerve, the femoral or the rectus femoris, inducing paralysis, but the effort had been appalling because of the tension already there in the muscles and I brought it down, dangerously, to the point where I could recover a small measure of the strength I'd need when the final effort had to be made, a half-second or a minute from now, no later than a minute because fatigue moves into a steepening curve towards the point of total exhaustion.

If it is true, as a witty conservative once said to me, that we never shall have peace in this country until we elect a colored woman president, I desire to be rectus in curia early.

Its only real function was to protect the floor from Gwendolyn's exercise equipment, which gleamed in the dim light scattering off the clouds from Shanghai: a step unit done up in Beaux-Arts ironmongery, a rowing machine cleverly fashioned of writhing sea-serpents and hard-bodied nereids, a rack of free weights supported by four callipygious caryatids-not chunky Greeks but modern women, one of each major racial group, each tricep, gluteus, latissimus, sartorius, and rectus abdominus casting its own highlight.