stem

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stem

 [stem]
a stalklike supporting structure; see also peduncle.
brain stem brainstem.

stem

(stem),
A supporting structure similar to the stalk of a plant.

stem

(stem) a supporting structure comparable to the stalk of a plant.
brain stem  brainstem; see under B.

STEM

abbr.
science, technology, engineering, and mathematics

stem

(stĕm)
n.
A supporting structure resembling the stalk of a plant.

stem

(stĕm)
v. stemmed, stemming, stems
v.tr.
1. To stop or stanch (a flow): stemmed the bleeding.
2. To restrain or stop: wanted to stem the growth of government.
3. To plug or tamp (a blast hole, for example).
4. Sports To turn (a ski, usually the uphill ski) by moving the heel outward.
v.intr. Sports
To stem a ski or both skis, as in making a turn.

stem

A term of art used in clinical trials for a prompt, question or instruction in a patient-reported outcome item.

stem

(stem)
A supporting structure similar to the stalk of a plant.
Fig. 289 Stem. Transverse sections of herbaceous stems; (a) dicotyledon, (b) monocotyledon.click for a larger image
Fig. 289 Stem . Transverse sections of herbaceous stems; (a) dicotyledon, (b) monocotyledon.

stem

the part of the shoot of vascular plants from which are produced leaves at regular intervals (NODES) and reproductive structures. Stems are usually circular in cross section but some are square (for example, members of the family Labiatae, such as mint and lavender) while others are ribbed. The internal structure of stems can be herbaceous (non-woody) or show SECONDARY THICKENING. See Fig. 289 .

The forms adopted by stems are highly varied, ranging from the oak tree to climbing plants such as Clematis and the pea. Stems are sometimes used as underground storage organs as in RHIZOMES, CORMS, BULBS (underground shoots with food stored in fleshy leaves) and stem TUBERS, e.g. potato, while others, such as the strawberry RUNNER and suckers of mint, are adapted for VEGETATIVE PROPAGATION.

stem

stalk; a stalklike supporting structure.

brain stem

Patient discussion about stem

Q. my mother have stem replacement for a coronary artery oclusion is already 2 years she physically deteriorating since surgery why???? please help she does not have energy

A. I agree with Dagmar. It can be most likely caused by another occlusion or re-occlusion inside the heart blood vessels. Since that is a life-threatening case, I strongly suggest you to bring your mother into a hospital (for complete check up), or just call your cardiologist to have first treatment.

Meanwhile, that will be better if you have emergency oxygen (just in case you'll need it) with you.

More discussions about stem
References in classic literature ?
As I watched them from behind the stem of a huge tree, one of the creatures moved slowly in my direction, engaged in the occupation that seemed to be the principal business of each of them, and which consisted in running their oddly shaped hands over the surface of the sward, for what purpose I could not determine.
With his sharp knife the Shaggy Man sliced off the stem of the leaf and as it fell and unfolded out trotted the Woozy and escaped beyond the reach of any more of the dangerous plants.
After making her fast, they swarmed the sides and searched the vessel from stem to stern.
The bowl was of a species of red stone resembling porphyry; the stem was six feet in length, decorated with tufts of horse-hair dyed red.
Its stem will stretch to the length of three or four feet - thus preserving its head above water in the swellings of the river.
The Spartans were a nice people in point of naturalization; whereby, while they kept their compass, they stood firm; but when they did spread, and their boughs were becomen too great for their stem, they became a windfall, upon the sudden.
At one time I was climbing up the quarterdeck when the vessel's stem was in the sky; I was smoking a cigar and feeling passably comfortable.
The third figure in the tree was hidden by the dense shadows near the stem.
A slight movement of the leaves at the top of a single stem had apprised him of the presence of a creature there, for the movement was not that imparted by the wind.
Suddenly, without warning, the cabin roof shot up into the air, a cloud of dense smoke puffed far above the Kincaid, there was a terrific explosion which shook the vessel from stem to stern.
Weaker and weaker became the struggles of them all, when a sudden misstep sent Bulan stumbling headforemost against the stem of a tree, where, stunned, he sank unconscious, at the mercy of the relentless bulls.
Now he stopped, and, rising on his hind legs against the stem of the tree that held his enemy, sharpened his huge claws upon the bark, tearing out great pieces that laid bare the white wood beneath.