How to change column width in DataGridView?

I have created a database and table using Visual Studio's SQL Server Compact 3.5 with a dataset as my datasource. On my WinForm I have a DataGridView with 3 columns. However, I have been unable to figure out how to get the columns to take up the full width of the DataGridView which is shown in the image below.

I want to make the abbreviates column wider and then have the description column extend all the way over to the edge of the form. Any suggestions?

Update:

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;

namespace QuickNote
{
public partial class hyperTextForm : Form
{
    private static hyperTextForm instance;

    public hyperTextForm()
    {
        InitializeComponent();
        this.WindowState = FormWindowState.Normal;
        this.MdiParent = Application.OpenForms.OfType<Form1>().First();            
    }

    public static hyperTextForm GetInstance()
    {
        if (instance == null || instance.IsDisposed)
        {
            instance = new hyperTextForm();
        }

        return instance;
    }

    private void abbreviationsBindingNavigatorSaveItem_Click(object sender, EventArgs e)
    {
        this.Validate();
        this.abbreviationsBindingSource.EndEdit();
        this.tableAdapterManager.UpdateAll(this.keywordDBDataSet);
    }

    private void hyperTextForm_Load(object sender, EventArgs e)
    {
        // TODO: This line of code loads data into the 'keywordDBDataSet.abbreviations' table. You can move, or remove it, as needed.
        this.abbreviationsTableAdapter.Fill(this.keywordDBDataSet.abbreviations);
        abbreviationsDataGridView.Columns[1].Width = 60;
        abbreviationsDataGridView.Columns[2].Width = abbreviationsDataGridView.Width - abbreviationsDataGridView.Columns[0].Width - abbreviationsDataGridView.Columns[1].Width - 72;
    }
}
}