🔷 A slanted parallelogram 💪 Upper back muscle 🧬 A membrane enzyme 🔷 Shaped like a rhombus

rhomboid

1 9.7

One of two muscles in the upper back that help move the shoulder blade

noun
/ˈrɑːmˌbɔɪd/

Specialized

: músculo romboide

It's honestly why don't you exercises you can do for shoulder stability, strengthening through your rhomboids, your what muscles, your spine.
a rhomboid muscle
strengthen rhomboids
trapezius and rhomboids

And the exercises where you're down here is using the rhomboids and the middle trapezius.

Examples

You're working everything from rhomboids to a little rotator cuff, backside, shoulder, little outside shoulder and and obliques.
During the exercise, you will engage your rhomboid muscles to improve your posture.
We found that that bullet entered the boy's back through the large rhomboid on the left and was stopped by his sternocostal joint on the right.

The Thin Man Goes Home (1944)
And the exercises where you're down here is using the rhomboids and the middle trapezius.

Tim Ferriss
So instead, that's where you're contracting the rhomboid and being surprised by when the tension is actually achieved in the trigger.
Adding a SFB has been shown to increase muscle activation on fine wire electromyography (EMG) for all components of the trapezius and rhomboids in a normal population.

Academic text (2016)
Strengthening your rhomboids can enhance your overall upper back strength and stability.
The rhomboid muscles play a crucial role in moving your shoulder blades during physical activities.

Synonyms

rhomboid muscle

vsrhomboid

Specialized

6.6

A muscle in the upper back between the spine and shoulder blade that helps move and hold it

has identical meaning but uses the shorter name without the anatomical noun

Compounds

lesser rhomboid muscle

Specialized

8.0

A muscle in the upper back under the trapezius that pulls the shoulder blade toward the spine and slightly up

greater rhomboid muscle

Specialized

7.4

A muscle in the upper back that pulls the shoulder blade toward the spine

rhomboid minor muscle

Specialized

6.1

A small upper back muscle that pulls the shoulder blade toward the spine and slightly up

rhomboid muscle

Specialized

6.6

A muscle in the upper back between the spine and shoulder blade that helps move and hold it

Surface Forms

rhomboid singular

rhomboids plural

Morphology

rhomboid = rhombus (semi-transparent) = rhombo + oid

Named for a rhombus-like shape of the muscle (root + '-oid'), so the morphological relation to 'rhombus' is helpful but requires anatomical knowledge to map shape to a muscle.

Etymology

Rhomboid as the name for a back muscle comes from the same Greek root rhombos 'diamond shape'. The muscle looks like a small diamond, so the name tells you its shape and place behind the shoulder.