stem

[stem]

a stalklike supporting structure; see also peduncle.

brain stem brainstem.

stem

(stem),

A supporting structure similar to the stalk of a plant.

Farlex Partner Medical Dictionary © Farlex 2012

STEM

abbr.

science, technology, engineering, and mathematics

stem

(stĕm)

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.

Medical Dictionary for the Health Professions and Nursing © Farlex 2012

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.

Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005

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

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References in classic literature

The vessel continued to proceed with all steam on; but on the 18th, the engineer, as he had predicted, announced that the coal would give out in the course of the day.

It was necessary to have dry wood to keep the steam up to the adequate pressure, and on that day the poop, cabins, bunks, and the spare deck were sacrificed.

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"Steam launch, coming!" one of us would cry out, on sighting the enemy in the distance; and, in an instant, everything was got ready to receive her.

Then that launch would give one final shriek of a whistle that would nearly burst the boiler, and she would reverse her engines, and blow off steam, and swing round and get aground; everyone on board of it would rush to the bow and yell at us, and the people on the bank would stand and shout to us, and all the other passing boats would stop and join in, till the whole river for miles up and down was in a state of frantic commotion.

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It swept across the river to Shepperton, and the water in its track rose in a boiling weal crested with steam. I turned shoreward.

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Smith, for I wanted a steam launch, and I have heard good reports of the--Let me see, what is her name?"

I want to find the whereabouts of a steam launch called the Aurora, owner Mordecai Smith, black with two red streaks, funnel black with a white band.

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Then in the darkness before the dawn they had come about and steamed northward in close order with the idea of passing through the German battle-line and falling upon the flotilla that was making for New York in support of the German air-fleet.

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"They can't keep up steam," he added, rapidly, and made a grab at the rail against the coming lurch.

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However, he steamed in and out of his little back Dock according as he was wanted or not wanted in the Patriarchal presence, and business had gone on in its customary course.

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He tried to tell it to Joe, but Joe had visions of his own, infallible schemes whereby he would escape the slavery of laundry-work and become himself the owner of a great steam laundry.

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The respectable Apollyon was now putting on the steam at a prodigious rate, anxious, perhaps, to get rid of the unpleasant reminiscences connected with the spot where he had so disastrously encountered Christian.

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