dam

Từ điển American Heritage Dictionary 4th

I. dam¹ (dăm)n.
1.
a. A barrier constructed across a waterway to control the flow or raise the level of water.
b. A body of water controlled by such a barrier.
2. A barrier against the passage of liquid or loose material, as a rubber sheet used in dentistry to isolate one or more teeth from the rest of the mouth.
3. An obstruction; a hindrance.tr.v. dammed, dam·ming, dams
1. To hold back or confine by means of a dam.
2. To close up; obstruct:
He tried to dam his grief.
See Synonyms at hinder¹. [Middle English.] damʹmer n. II. dam² (dăm)n.
1. Abbr. d. A female parent. Used of a four-legged animal.
2. Archaic. A mother. [Middle English dam, dame, lady, mother. See dame.] III. dam³abbr.
decameter.

• Từ đồng nghĩa / Synonyms:
  decameter, dekameter, decametre, dekametre, dkm, dike, dyke, dam up