What's the difference between feeder and feeler?

Feeder


Definition:

  • (n.) One who, or that which, gives food or supplies nourishment; steward.
  • (n.) One who furnishes incentives; an encourager.
  • (n.) One who eats or feeds; specifically, an animal to be fed or fattened.
  • (n.) One who fattens cattle for slaughter.
  • (n.) A stream that flows into another body of water; a tributary; specifically (Hydraulic Engin.), a water course which supplies a canal or reservoir by gravitation or natural flow.
  • (n.) A branch railroad, stage line, or the like; a side line which increases the business of the main line.
  • (n.) A small lateral lode falling into the main lode or mineral vein.
  • (n.) A strong discharge of gas from a fissure; a blower.
  • (n.) An auxiliary part of a machine which supplies or leads along the material operated upon.
  • (n.) A device for supplying steam boilers with water as needed.

Example Sentences:

  • (1) The early absolute but transient dependence of these A-MuLV mast cell transformants on a fibroblast feeder suggests a multistep process in their evolution, in which the acquisition of autonomy from factors of mesenchymal cell origin may play an important role.
  • (2) In cultures of medium ML-15 containing a feeder layer of Dog Sarcoma (DS) cells larvae successfully moulted and showed a small but significant increase in length.
  • (3) Type II cells cultured on floating feeder layers in medium containing 1% CS-rat serum and 10(-5) M hydrocortisone plus 0.5 mM dibutyryl cyclic AMP exhibited significantly increased incorporation of [14C]acetate into total lipids (238% of control).
  • (4) Dopamine, 5-hydroxydopamine (5-OHDA), 6-hydroxydopamine (6-OHDA), 5-hydroxytryptamine (5-HT), 5,6-dihydroxytryptamine (5,6-DHT) and 5,7-dihydroxytryptamine (5,7-DHT) killed the parasites in vitro, using a fibroblast feeder layer cell culture system, in four to 48 hours at concentrations of 10(-5)-10(-7) M. The 5-OHDA, 6-OHDA, 5,6-DHT and 5,7-DHT were also effective in vivo when tested by intraperitoneal injection of infected mice.
  • (5) This feeder cell system is proposed as an in vitro model for epithelial wound healing.
  • (6) Because ammocoetes are burrowing filter feeders, this startle behavior results in rapid withdrawal of the head into the burrow.
  • (7) This feeder layer technique is very simple and flexible and could have wide applicability.
  • (8) It turned out to require additional stimulation by hemopoietic feeder cells: by irradiated marrow cells and spleen cells if they possess megakaryocytes and platelets or by platelets from the blood.
  • (9) Keratinocytes were plated onto tissue culture dishes using one of three basic serum-free media protocols; a) with no feeder layer in keratinocyte growth medium (KGM); b) onto mitomycin C-treated 3T3 mouse embryo fibroblasts; or c) onto mitomycin C-treated dermal human fibroblasts.
  • (10) The alginate matrix permits efficient cloning in limited incubator space, without the use of a feeder layer, and with minimal amount of medium.
  • (11) Obliteration of the AVM was accomplished by therapeutic embolization with placement of coils or balloons in the feeder vessels.
  • (12) MCBFV in MCA on the feeder side was statistically significant higher in those patients with large AVM (greater than 4 cm) size (p less than 0.01).
  • (13) Usually it is not possible to cure DAVMs by embolization alone: the approach now used for the main feeders arising from branches of the internal carotid and vertebral arteries is inadequate.
  • (14) One hundred fifty feeder steers (mean body weight, 195 kg) were assigned to 1 of 3 transport groups and were deprived of feed and water (fasted) for 24 hours.
  • (15) The day of the experiment a microdialysis probe was inserted in the prefrontal cortex (PFC) of the rats and dialysates were collected every 20 minutes while the light and the feeder were off.
  • (16) The application of argon blue-green laser treatment at 0.1 watt for 60 seconds at two adjacent points on a feeder vessel was found to give rise to permanent vascular occlusion without causing complications.
  • (17) Whereas the cells from one patient formed colonies in the absence of exogenous stimuli, the cells from others were dependent on the addition of feeder leukocytes plus IL 2.
  • (18) Control CFU-GMs were also inhibited when they were cultured over feeder layers containing patients' BM cells (P less than .001).
  • (19) Such are the employability benefits associated with a Cambridge education that increasing numbers are sending their children to the various “ feeder schools ” around the city to boost their chances of a successful application.
  • (20) In the flocks included in the necropsy survey, annual mortality among adult and feeder sheep was estimated to be three percent.

Feeler


Definition:

  • (n.) One who, or that which, feels.
  • (n.) One of the sense organs or certain animals (as insects), which are used in testing objects by touch and in searching for food; an antenna; a palp.
  • (n.) Anything, as a proposal, observation, etc., put forth or thrown out in order to ascertain the views of others; something tentative.

Example Sentences:

  • (1) Miliband, who was clear that the motion should be worded in a non-partisan way to try to attract the widest possible support, put out feelers to the Liberal Democrats who can boast the most consistent track record in standing up to the Murdoch empire.
  • (2) Using a feeler type of cutting mechanism and a scanning electron microscope, cavity walls were examined subsequent to the preparation thereof with various types of working tools.
  • (3) A new, noninvasive method using a feeler arm to trace and measure facial contours is described.
  • (4) Sources close to the MDC said the party leadership had put out feelers to the military and elements of the ruling Zanu-PF to try to arrange a peaceful transfer of power.
  • (5) An optical feeler measuring technique was introduced for evaluating the dimensional accuracy of indirect stone models.
  • (6) They have handles like “Bum Feeler” and “Rock Hard”, and share stories of their exploits and pictures of the women they have surreptitiously dry-humped.
  • (7) For 18 months, a special contact unit was putting out feelers to army commanders, trying to understand their contingency plans and to persuade them to remain neutral.
  • (8) The reconsideration of the US role comes as Washington puts out feelers to the Taliban.
  • (9) Feelers have already gone out from Cameron’s allies to the Democratic Unionist party (current tally: eight seats).
  • (10) Kadyrov, in turn, despised Maskhadov, and was jealous of his standing among the Chechens, although Kadyrov's brutish son, Ramzan, recently claimed to be putting out feelers aimed at reaching a settlement with Maskhadov, a move he said was sabotaged by Russian intelligence.
  • (11) So Trump’s election team, somewhat recklessly, put out early feelers.
  • (12) The 24 N-terminal amino acids are so poorly defined in the electron density map as to make interpretation doubtful, indicating that they might act as 'feelers' suitable for DNA or protein (invertase) recognition.
  • (13) Shell ceased operations in 1993 and it says it has no plans to resume them, but local oil firms are putting out feelers, with community chiefs in the area collecting signaturesin favour of resuming drilling.
  • (14) From time to time, we would get feelers from people who knew him, or on his behalf, on whether we would grant a visa,” Richard Boucher, who worked for the South Asia bureau from 2006 to 2009, told the Wall Street Journal .
  • (15) The truth was that a rightly aggrieved Mancini had been tipped off about the feelers already going out to José Mourinho and had opted to announce his own sacking in advance.
  • (16) Putting out feelers The Maryland Democrat has long been preparing for a presidential run.
  • (17) It showed that measurings on the basis of acceleration registration produced similar results as the 'halter method with plate feelers' used so far and that disturbance of the test animals is reduced.
  • (18) The adaptation of the processed dentures to the aluminum cast was measured with feeler gauges.
  • (19) And she would yell at him, 'George, you're walking around with your feelers out!'
  • (20) They have become so desperate that they have been putting out feelers to minority parties to see if they can construct a Commons majority for revising the boundaries, even though Labour and the Lib Dems are opposed.