Dictionary » D » Drill



1. To cause to flow in drills or rills or by trickling; to drain by trickling; as, waters drilled through a sandy stratum.

2. To sow, as seeds, by dribbling them along a furrow or in a row, like a trickling rill of water.

3. To entice; to allure from step; to decoy; with on. See drilled him on to five-fifty. (Addison)

4. To cause to slip or waste away by degrees. this accident hath drilled away the whole summer. (Swift)

Origin: cf. Trill to trickle, Trickle, Dribble, and W. Rhillio to put in a row, drill.

1. A small trickling stream; a rill. Springs through the pleasant meadows pour their drills. (Sandys)

2. An implement for making holes for sowing seed, and sometimes so formed as to contain seeds and drop them into the hole made. A light furrow or channel made to put seed into sowing.

a row of seed sown in a furrow.

drill is used adjectively, or as the first part of a compound; as, drill barrow or drill-barrow; drill husbandry; drill plow or drill-plow. Drill barrow, a wheeled implement for planting seed in drills. Drill bow, a small bow used for the purpose of rapidly turning a drill around which the bowstring takes a turn. Drill harrow, a harrow used for stirring the ground between rows, or drills. Drill plow, or drill plough, a sort plow for sowing grain in drills.

1. An instrument with an edged or pointed end used for making holes in hard substances; strictly, a tool that cuts with its end, by revolving, as in drilling metals, or by a succession of blows, as in drilling stone; also, a drill press.

2. The act or exercise of training soldiers in the military art, as in the manual of arms, in the execution of evolutions, and the like; hence, diligent and strict instruction and exercise in the rudiments and methods of any business; a kind or method of military exercises; as, infantry drill; battalion drill; artillery drill.

3. Any exercise, physical or mental, enforced with regularity and by constant repetition; as, a severe drill in latin grammar.

4. (Science: zoology) a marine gastropod, of several species, which kills oysters and other bivalves by drilling holes through the shell. The most destructive kind is Urosalpinx cinerea. Bow drill, breast drill. See bow, breast. Cotter drill, or traverse drill, a machine tool for drilling slots. Diamond drill. See diamond. Drill jig. See jig. Drill pin, the pin in a lock which enters the hollow stem of the key. Drill sergeant, a noncommissioned officer whose office it is to instruct soldiers as to their duties, and to train them to military exercises and evolutions. Vertical drill, a drill press.

(Science: zoology) a large african baboon (Cynocephalus leucophaeus).

Origin: cf. Mandrill.

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Answer this question. Coming from my module drills.

Please answer this question. This is coming from my Biology Majorship Module Drill Reviewer and the question goes something like this: Which type of cell would probably provide the best opportunity to study lysosomes? A. Leaf Cell of a Plant B. Nerve Cell C. Muscle ...

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by jmpangelo
Tue Feb 19, 2013 6:34 am
Forum: Cell Biology
Topic: Answer this question. Coming from my module drills.
Replies: 3
Views: 3510

Re: how to memorize the amino acid

... of old nomenclature (like pepsine, leucine etc.; with three exceptions as Tryptoph an and the acidic AAs). The only way to memorize them is just drill, but I will give you a hint, which our prof gave us. Look on the amino acids as on derivatives of alanine, instead of glycine. Glycine is of course ...

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by JackBean
Thu Feb 09, 2012 9:52 am
Forum: General Discussion
Topic: how to memorize the amino acid
Replies: 4
Views: 7124

Sense/antisense - codon/anticodon - DNA/mRNA/tRNA - confused

Thank you both so much! So, if I can just drill 'sense is mRNA' into my skull, I can then work out in either direction (back to transcription or on to translation) what is sense/antisense in DNA and the tRNA. Now I just have to think up a mnemonic! ...

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by Julie5
Wed Apr 27, 2011 8:34 pm
Forum: Cell Biology
Topic: Sense/antisense - codon/anticodon - DNA/mRNA/tRNA - confused
Replies: 3
Views: 12778

Re: How Woodpecker skull evolved

... as they do wtih the Bombardier Beetle and Giraffe's neck, and Basically, the creationists say that all the features that allow a woodpecker to drill into a tree without getting brain damage, had to have been there all at once, or else the first one would have died and they wouldn't exist. It's ...

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by jaebaeli
Thu Oct 21, 2010 5:34 am
Forum: Evolution
Topic: How Woodpecker skull evolved
Replies: 2
Views: 6191

Re: living and non-living things

... But when i came back i found out my PC didn't work at all, so i had to get a new one, install all the programs back again... you know the drill. That meant another week with no access to the Internet and my precious biology-online.org :cry:

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by TheVirus
Fri Feb 12, 2010 3:13 am
Forum: General Discussion
Topic: living and non-living things
Replies: 14
Views: 8299
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